Single Opt-In vs Double Opt-In (with unique test results)

32 replies
A lot of the top internet marketers are still using single opt-in to build their broadcast lists. I've been a defender of double opt-in for a few years now, and decided to finally put together a bit of a tutorial on exactly why it has worked better for me... and why the basic numbers can be VERY deceiving.

For this video, I did a unique test were I exported un-verified leads from my Aweber account into another service that allows list import. Normally I would NOT recommend you do this. It is a borderline tactic at best, but I wanted to prove a point... and technically speaking, these people would be on my list if I was using single opt-in.

I sent those users some valuable content in an attempt to bring them back into the fold. It was an absolute failure. I put together a free video tutorial on this, and all of my other reasons for using double opt-in. You can watch it here:

- Single Opt-In vs. Double Opt-In - Choosing An E-mail List Type

Please forgive the blatant link... I don't sell or promote any products or services on my website. I would have preferred to embed YouTube for something like this, but I just launched the YouTube account for this website (so it still has 10 minute limits until I can apply for partner status).
#double #optin #results #single #unique
  • Profile picture of the author Kenneth Fox
    Hey Rick,

    Excellent video and I really like the look and feel
    of your website..very clean and uncluttered.
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    • Profile picture of the author rickkettner
      Originally Posted by capone2009 View Post

      Great, just what I needed right now.
      Thank you for the feedback, glad you enjoyed the video.
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    • Profile picture of the author rickkettner
      Originally Posted by Kenneth Fox View Post

      I really like the look and feel
      of your website..very clean and uncluttered.
      Thanks. It was designed by Joe at MiniSiteFrog.com. He does great work.
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  • Profile picture of the author Nickolie0990
    Awesome post Rick, I have always used double opt-in. I have heard some people using single opt-in with success. I always like the double opt-in, because it gives me a better chance to bond with the new lead/subscriber. My only fear, if you can call it that, is I know Aweber charges for all emails address on your account. If you get a ton of people not clicking the verifying link, then will Aweber charge you for it?

    I don't think they do, but I have never really done any research to find an answer.
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    • Profile picture of the author rickkettner
      Originally Posted by Nickolie0990 View Post

      My only fear, if you can call it that, is I know Aweber charges for all emails address on your account. If you get a ton of people not clicking the verifying link, then will Aweber charge you for it?

      I don't think they do, but I have never really done any research to find an answer.
      Well, you have options... but first consider this. All of those leads would still be on your list if you were using single opt-in (but as explained in the video, would be basically worthless). At least with double opt-in, you can filter out un-verified leads and delete them from the system (after giving them ample time to verify).
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      • Profile picture of the author Andyf
        This is a good discussion...I'm still undecided which way to go here...single or double opt-in. I worry about two things (even though I haven't used an autoresponder yet...talk about paranoid!):

        1) Spam complaints...from people who don't know what the def is

        2) Unopened Conformation Emails caught in Spam filters

        I wish this was easier to figure out.

        Anyway, if AWeber doesn't allow Single Opt-In, what do people use instead of AWeber?

        Thanks!
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        • Profile picture of the author rickkettner
          Originally Posted by Andyf View Post

          I worry about ...

          2) Unopened Conformation Emails caught in Spam filters
          Take a look at my confirmation page for an example of how to help your leads dig your message out of spam... you don't have to finish the sign-up process to look at my page... just start the sign-up (www.InternetMarketing4U.com).

          Note: I will be adding a video soon that walks people through looking at their spam folder... using AOL and Yahoo as examples (most of my unverifieds seem to come from those two e-mail providers).
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  • Profile picture of the author actionplanbiz
    right now i have one squeeze page thats a single opt in. but my follow up emails promote my double opt in list

    Would this strategy be ok?
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  • Profile picture of the author Slin
    Huh, interesting. I think it depends on the niche too though, I am finding a bit of the opposite (my list is not big enough yet for a huge statement opposing yours though)
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  • Profile picture of the author tommen
    Very interesting video! Personally, I prefer single optin.The easier you make it for people, the better.Many people are not willing to confirm their email address.
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    • Profile picture of the author Chris Steiner
      This is an interesting test, but I'm not sure it is fair to compare a single opt-in list to a mailing done to unverified addresses from a double opt-in list. That would seem to be stacking the deck against single.

      A more fair test would be split testing two lists from the same opt-in page, one single and one double, and sending each list the same sequence and any broadcast messages. Then compare the statistics from the two.

      Getresponse has recently been posting statistics on their blog supposedly showing that double is better as well, though I question their motivation since I'm sure that the double opt-in lists sit better with spam filter companies and ISPs and give them more leverage in any discussions about removing their servers from any blacklists.

      I guess I'm just a skeptic at heart. I suggest to everyone - do your own testing and then use what works best in your business.
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      • Profile picture of the author rickkettner
        Originally Posted by Chris Steiner View Post

        This is an interesting test, but I'm not sure it is fair to compare a single opt-in list to a mailing done to unverified addresses from a double opt-in list. That would seem to be stacking the deck against single.
        The idea isn't to compare the unverified directly to single-opt in... rather it is to suggest the unverified leads are basically the only thing you are going to get added to your list by using single instead of double.

        So, with all the risks associated with single opt-in... you get those added leads, but they are basically worthless.

        That, and you don't help quality leads dig your message out of the spam folder and don't let them know that mistype'd information was another possibility. So you trade possible quality leads (by losing the ability to help them out) for those worthless unverified leads.
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  • Profile picture of the author ShaneRQR
    Great stuff! It's good to see actual numbers and testing done on this, instead of just speculation.
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  • I personally use single opt-ins and my bounce rate is always under 1%, my spam complains remain low and my opt-in ratios are higher than when I used to use double opt-ins.

    In fact, many internet gurus (Frank Kern, Ryan Deiss, etc) use single opt-ins and those are the guys who've split tested every single aspect of their squeeze pages, so....
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  • Profile picture of the author Troy_Phillips
    First off... congratulations on your success with double opt ins .

    Most have figured out I am a single opt in type of guy ... you think ?

    While I applaud your attempt to test , it is kind of an attempt .

    You are using subjects who were not motivated to click more than once to begin with.... you wasted that one click.

    Honestly ...these subjects are not going to be profitable for single or double opt in.

    I could do a comparable test with list members that are not responsive . Send them an email explaining I was going to double opt in and needed them to sign up to my new list . I don't see that "test" working either .

    This would only prove the non-responsive are well.... non-responsive .

    I am not kicking double opt in. It doesn't fit MY business model. If I could figure out how to get the freakin conformation email out of the members spam folder, I might entertain the idea myself . Nah .. been there .. done that.

    Do an honest split test . Same capture page . Same bait . Same traffic . Both loaded into a 50/50 rotation .

    Just one form redirects to a "pretty please , I want to give you my bait , all you need to do is log in to your email, search all your folders until you find my email, click the conformation link, get my stuff."

    The other form directs to " your bait should be in your email shortly , oh yeah , here is an unadvertised bonus "

    Now that is a video I might even click on a conformation link for .
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    • Profile picture of the author rickkettner
      Originally Posted by Troy_Phillips View Post

      You are using subjects who were not motivated to click more than once to begin with.... you wasted that one click.

      Honestly ...these subjects are not going to be profitable for single or double opt in.
      That is exactly the argument. By using single opt-in, the only additional leads you are generating are the ones that fall into that un-verified status... and we both seem to agree they are not going to be profitable.

      So, why not go with double opt-in? You skip those worthless leads, and get better status with the quality leads.


      Originally Posted by Troy_Phillips View Post

      I am not kicking double opt in. It doesn't fit MY business model. If I could figure out how to get the freakin conformation email out of the members spam folder, I might entertain the idea myself . Nah .. been there .. done that.
      Well, it's important to understand that if your confirmation message goes into spam... ALL of your future messages (through single opt-in) are extremely likely to go to spam as well. Therefore, by using single opt-in... you aren't reaching them any better, there is no benefit... and are actually just getting blacklisted by continuing to spam them (while never reaching their inbox).

      See my confirmation page (Internet Marketing Training Guide With Free Step-By-Step Tutorials) to see how I help leads dig the message out of spam. This way, at least I give them an opportunity to get on my list... where if I was using single opt-in, they would just be unreachable.

      Originally Posted by Troy_Phillips View Post

      Do an honest split test . Same capture page . Same bait . Same traffic . Both loaded into a 50/50 rotation .
      The only problem with a test like that is there are so many unmeasurable affects that can take years to take affect... and are a gamble. Things like:
      • If single opt-in gets banned by ISPs or the FCC tomorrow, you instantly lose most of your list. However, it might not get banned for 5 years... impossible to predict with perfect accuracy.
      • How will subscribers percieve you long-term?
      • What is the life-span of your list, will it degrade or get blacklisted faster?
      • What is the value of leads that can't verify their status?
      • How much more are leads worth if they actually dig your message out of spam based on your confirmation pages help (showing the ability to follow instructions and follow through).
      • What affect does the name association aspect of double-opt in have long-term? In other words, when they first recognize your name in their inbox as being sent from a specific website, and make that association... will they trust you better over time. As opposed to getting through single opt-in instantly... and seeing your name in their inbox a few days later (thinking you are a spammer).

      Obviously I feel pretty strongly about double opt-in, but I also understand there are some markets where it can work. Personally, I feel the long-term risks to the business are just not worth it... and double opt-in gives me a stronger relationship with my strongest leads.
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      • Profile picture of the author Troy_Phillips
        Originally Posted by rickkettner View Post

        That is exactly the argument. By using single opt-in, the only additional leads you are generating are the ones that fall into that un-verified status... and we both seem to agree they are not going to be profitable.

        So, why not go with double opt-in? You skip those worthless leads, and get better status with the quality leads.
        We do not agree . I stated the people you were testing only had one click in them and you wasted that click.

        Any real list builder knows how to funnel leads . I will have an unresponsive member deleted in less than 30 days .


        Well, it's important to understand that if your confirmation message goes into spam... ALL of your future messages (through single opt-in) are extremely likely to go to spam as well. Therefore, by using single opt-in... you aren't reaching them any better, there is no benefit... and are actually just getting blacklisted by continuing to spam them (while never reaching their inbox).

        See my confirmation page (Internet Marketing Training Guide With Free Step-By-Step Tutorials) to see how I help leads dig the message out of spam. This way, at least I give them an opportunity to get on my list... where if I was using single opt-in, they would just be unreachable.
        Why would I want to waste my time "trying" to get someone to click a conformation link? For every no open I will replace them with three who are interested in what I have to offer .

        Sheer numbers is a good point in building a list .



        The only problem with a test like that is there are so many unmeasurable affects that can take years to take affect... and are a gamble. Things like:
        • If single opt-in gets banned by ISPs or the FCC tomorrow, you instantly lose most of your list. However, it might not get banned for 5 years... impossible to predict with perfect accuracy.
        • How will subscribers percieve you long-term?
        • What is the life-span of your list, will it degrade or get blacklisted faster?
        • What is the value of leads that can't verify their status?
        • How much more are leads worth if they actually dig your message out of spam based on your confirmation pages help (showing the ability to follow instructions and follow through).
        • What affect does the name association aspect of double-opt in have long-term? In other words, when they first recognize your name in their inbox as being sent from a specific website, and make that association... will they trust you better over time. As opposed to getting through single opt-in instantly... and seeing your name in their inbox a few days later (thinking you are a spammer).
        You state that my test has too many variables . Your test was quick, has a lot of variables in it's self , and is in no way accurate.

        You simply set up a so called test that had no other possibility but to prove your own point .

        I back my leads up every day . If anyone decides to ban single opt in... why would this matter to someone who has the abilities to place this list in their own ar , own server ? Does a ISP have the ability to check and see if list members clicked a link one or twice ? NO

        As far as long term value . The value of any list is the money it puts in your account each month. I have people that have been on my list for over 5 years . They still buy .

        How many times someone clicks to get on your list has no relevance to their perceived worth .


        Obviously I feel pretty strongly about double opt-in, but I also understand there are some markets where it can work. Personally, I feel the long-term risks to the business are just not worth it... and double opt-in gives me a stronger relationship with my strongest leads.
        It will work the same in all markets. The number of clicks it takes to get on a list does not have anything to do with niches or markets .

        Your personal preference is understood , as I said ... if it works for you fine . The point that you took a biased test and tried to present it as fact, still proves nothing concerning single vs double opt in.
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        • Profile picture of the author rickkettner
          I seem to have upset you a little, and if that is the case... I sincerely apologize. I take a bit of a technical approach sometimes, and can often come across with an "I am right" attitude when simply trying to provide my perspective.

          That said, I will try to address the points you brought up... to continue our interesting debate.

          Originally Posted by Troy_Phillips View Post

          Any real list builder knows how to funnel leads. I will have an unresponsive member deleted in less than 30 days.
          I am not 100% sure what you mean by this. If you have leads being added to your list with fake information, addresses on certain servers that filter your mail as spam, or other unresponsive means... how do you plan to remove them from your list? You can only do this by removing bounces automatically, which is what would happen if you were using double opt-in (no benefit to single opt-in).

          Keep in mind, the people that fall into these categories are completely unreachable... so somehow getting them to manually opt-out isn't going to work. Really, using a re opt-in method is all that would work (by checking click stats or actually tracking a specific link to "keep them")... but this would obviously be un-reliable and remove far more people than necessary.

          Originally Posted by Troy_Phillips View Post

          Why would I want to waste my time "trying" to get someone to click a conformation link? For every no open I will replace them with three who are interested in what I have to offer.
          You will simply lose subscribers with the mindset of "this one isn't important, more are coming". Why give up perfectly good subscribers when spending 10 minutes to write a good double opt-in page once - is all the time you need to invest in saving upwards of 10% more subscribers each day... people that are willing to do a bit extra to get on your list (which I later argue makes them worth more).

          Originally Posted by Troy_Phillips View Post

          You state that my test has too many variables . Your test was quick, has a lot of variables in it's self , and is in no way accurate.
          I am saying both of our tests have too many variables, and that ultimately split testing single vs double is impossible without having years to watch the results play out.... and even then, there is luck and other factors involved. This being the case, I prefer to examine current results and make my decision based on successful business principles, rather than short term statistics. From what I have seen, single opt-in doesn't mesh with my business principles or deliver better stats, so it is an easy decision.

          Originally Posted by Troy_Phillips View Post

          I back my leads up every day . If anyone decides to ban single opt in... why would this matter to someone who has the abilities to place this list in their own ar , own server ? Does a ISP have the ability to check and see if list members clicked a link one or twice ? NO
          Actually, I would argue that they could easily have this power. For example, they could ban all lists except those by authorized double opt-in providers... quality companies like Aweber. This may sound odd, but it is how many things are handled online. Take domain names for example. Not just anyone can sell them, and there are security measures in place to make sure domains aren't stolen from their rightful owners.

          Likewise, there could be quality-assurance rules setup for authorized providers to power secure double opt-in lists. Your own server wouldn't have this power... and therefore your list could be unusable.

          However, as a counter argument (to my own view), you would probably have 30-120 days to use a new lead magnet to entice subscribers over to a new list during a transitional period. My only point here is... it is very possible that ALL single opt-in lists could be killed off permanently.

          Originally Posted by Troy_Phillips View Post

          As far as long term value . The value of any list is the money it puts in your account each month. I have people that have been on my list for over 5 years . They still buy .
          This builds on previous quotes. In my opinion, asset value shouldn't be measured by the profits of this month, or next... but of the potential profits over the next few years. You may have subscribers that will still buy, but you may not have the power to contact them if your list gets blacklisted, their ISP blocks you, or if single opt-in gets banned.

          Originally Posted by Troy_Phillips View Post

          How many times someone clicks to get on your list has no relevance to their perceived worth .
          Originally Posted by Troy_Phillips View Post

          It will work the same in all markets. The number of clicks it takes to get on a list does not have anything to do with niches or markets .
          Well, without getting into technical arguments (e.g. - cognitive dissonance, etc.), I can say that leads that work to get on your list ARE more valuable. They demonstrate a willingness to take action, and thus are statistically more responsive and more likely to read e-mails, open links, and take further action. Simply put, they are proven to be "action takers" not just "browsers".

          Please provide a reason you believe these people wouldn't be worth more...

          Originally Posted by Troy_Phillips View Post

          Your personal preference is understood , as I said ... if it works for you fine . The point that you took a biased test and tried to present it as fact, still proves nothing concerning single vs double opt in.
          I didn't do the test to choose sides, and I have no personal reason to have a bias towards double opt-in. I use what works, and generally side with tactics that mesh with my long-term business goals.

          In this case, I believe double opt-in gets me higher quality leads, and keeps my list clean and future proof. Single opt-in slowly gets me blacklisted, could be banned, and can put people on my list that didn't intend to subscribe to follow-up broadcasts (giving me a worse reputation in the community). IMO, with the subscriber stats being within 5% either way... this makes double opt-in an obvious choice.

          I respect your right to choose single opt-in, but stand by my arguments for double opt-in .
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          • Profile picture of the author quickregister
            I switched from single to double opt in and I was really worried that my subscription rate would fall. It did a little bit but not nearly as much as I thought. The vast majority of people are confirming. I think people are used to the process by now. Also I think it is important to offer incentives to give people a reason to confirm. In the long run I think you will have a much better list with double opt in. Also you lower your charges with your email service provider.
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  • Profile picture of the author Antony103
    Rick have you ever considered using the double optin Video feature that aweber provides?
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    • Profile picture of the author rickkettner
      Originally Posted by Antony Le View Post

      Rick have you ever considered using the double optin Video feature that aweber provides?
      I've considered it, but I prefer to create my own video (coming soon) so I form a better relationship with my leads... while trying to improve the confirm rate.

      Whenever you can remove template elements with personal copy, it is an advantage IMO.
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  • Profile picture of the author 7_8_shortcuts
    Good point Rick.

    Sometimes it does matter how you set up your opt-in process so that subscribers remember you and value/open your emails even after just single opt-in, but it requires quite a lot of skill and of course delivery of great information. All in all, the double opt-in list tends to be more responsive I think too.
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  • Profile picture of the author LeonT
    Hey great video! I just subscribed to your list!
    I totally agree that double opt in list is the way to go and its the future...

    Also, from my point of view it gives the marketer a little more credibility by asking the receiver to take some sort of a "step/action" towards building a relationship together - instead of just plastering any "random" person on some list.
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  • Profile picture of the author Trader54
    Hi Rick,

    Not sure why but I opened your site with google chrome and the video doesn't even show up.

    I then pasted the link into firefox and had no problems, just thought I would let you know.
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    • Profile picture of the author rickkettner
      Originally Posted by Trader54 View Post

      Hi Rick,

      Not sure why but I opened your site with google chrome and the video doesn't even show up.

      I then pasted the link into firefox and had no problems, just thought I would let you know.
      I'll have to look into this. It appears to be an issue with EVP security upsetting Chrome security... I'll let Josh Bartlett know tomorrow.
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  • Profile picture of the author Troy_Phillips
    I seem to have upset you a little, and if that is the case... I sincerely apologize. I take a bit of a technical approach sometimes, and can often come across with an "I am right" attitude when simply trying to provide my perspective.

    That said, I will try to address the points you brought up... to continue our interesting debate.
    I am actually enjoying the debate .. not upset in the least .

    One thing is for sure .. neither one of us is going to change the others mind .

    With this being one fact we can both agree on .... my hat off to you sir . While we disagree on the number of clicks ... I think we both agree also that email marketing is a very good business model.

    Both of us can better spend our time teaching those that know less than we do instead of arguing mute points .

    To our joint success

    Troy Phillips
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    • Profile picture of the author rickkettner
      Originally Posted by Troy_Phillips View Post

      I am actually enjoying the debate .. not upset in the least .

      One thing is for sure .. neither one of us is going to change the others mind .

      With this being one fact we can both agree on .... my hat off to you sir . While we disagree on the number of clicks ... I think we both agree also that email marketing is a very good business model.

      Both of us can better spend our time teaching those that know less than we do instead of arguing mute points .

      To our joint success

      Troy Phillips
      Well said .
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  • Profile picture of the author SageSound
    The biggest problem I have is confirmation emails getting lost. The AR vendors provide no way to deal with this. The subscriber's email is stuck in limbo, they cannot confirm or request another confirmation email or even go to a web page and opt-in directly.

    I have one list where the unconfirmed emails are 30% of the confirmed opt-ins! Several people did eventually opt-in with another email address.

    But I find it incredulous that the major AR vendors feel that the most draconian approach to this COMMON PROBLEM is the best and only solution worth availing to their customers.

    At one point over half of all the unconfirmed emails were from yahoo.com addresses, and there were virtually no yahoo.com addresses in the confirmed list.

    I hate to tell people not to use freebie emails to sign up when so many people do, but either the AR vendors have it out for certain domains/providers, or those providers aren't doing a very good job of managing their interfaces with AR vendors. Either way, we get stuck in the middle with no way to address the problem.

    Magically, this problem appears to go away with single opt-in, althought the OP claims it's smoke and mirrors.

    I'm sorry but I don't buy the "coincidence" that such high percentages of unconfirmed emails are from yahoo.com and a couple other freebie mail domains. The direct implication is that only silly people who aren't serious would use yahoo.com, msn.com, hotmail.com email addies. So of course they're not going to respond to follow-ups if they didn't confirm the opt-in.

    Has anybody tested THIS hypothesis?
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    • Profile picture of the author rickkettner
      Originally Posted by SageSound View Post

      Magically, this problem appears to go away with single opt-in, althought the OP claims it's smoke and mirrors.

      I'm sorry but I don't buy the "coincidence" that such high percentages of unconfirmed emails are from yahoo.com and a couple other freebie mail domains. The direct implication is that only silly people who aren't serious would use yahoo.com, msn.com, hotmail.com email addies. So of course they're not going to respond to follow-ups if they didn't confirm the opt-in.
      It isn't a coincidence. Their spam filter blocks more mail from AR providers... it's that simple. Doesn't matter if the mail is a double opt-in confirm message or your single opt-in auto messages... they will all just hit spam unless you help the user pull them out of spam (whitelisting you for that individual account... and perhaps long-term, getting Yahoo to realize you are a safe source for their entire user base).
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  • Profile picture of the author seasoned
    If they consider your info interesting enough, or enticing, they WILL double opt in! If they don't, WHY BOTHER!?!?

    One bit of advice....
    1. Use the SAME email for BOTH the info and the optin conf.
    2. Make sure the optin conf doesn't trip spam filters.
    3. Make sure it is obviously from YOU!

    Steve
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