How to Extract Portion of List for IP Warming?

If you want to do IP warming you need to extract OPENERS or CLICKERS from your list and email only those records for the first couple weeks while you warm up a new IP. Then slowly increase volume by adding in other records. Keep an eye on delivery rates because if they decrease you may need to back off mailing completely or go back to emailing only openers and clickers for 2-3 days. The temporary blocks ISP's put on IPs generally last for anywhere from 4 hours to 3 days. Managing your own delivery is tough but can pay off in the end. Good luck!

The only thing I can think of is to take the list and open it in Excel (or the open office equivalent). You would be able to see the number of rows and be able to accurately pull out 100, 1000 etc.

Also, while you are in the list you can highlight the cell's for the emails you have already uploaded into your self hosted AR. Granted, most systems remove uploaded duplicates automatically, but it's just a added measure.

At what volume do you need to consider IP warming?

Just going to restate my previous statement, despite some unclear viewpoints on my previous statement.

You answered yourself in the OP. So you knew how to properly do what you're doing. HOWEVER, if you did purchase a list or scrapped a list, or did anything else beside build the list yourself, there is no such thing as IP Warming. Regardless of how large the list size is, or how small or segmented out your list will be, most Bulk Service providers will kick you out of their system before you can warm anything.

Secondly, as to make sure you know what you're getting yourself into, scrub your list before you do anything. Don't pay big bucks for any service until you know what you're getting yourself into. Use fiverr for a deliver-ability test email so you can scrub your list even more.

If you don't like what I say, that's fine. But however you put it, you'll be wasting money if you don't follow the correct procedures. Tough love is your friend in this business.



Edit: IP Warming is so you can send out more and more emails each day. IP Warming is used when you have an opt-in or double opt-in list to use in the very beginning. This is not a tactic you can use with a list you have no previous sending with. Sure, most bulk providers will tell you to start slow, but if you're hitting 10% bounce rates, or high spam complaint rates any bulk provider will shut down your account.

If you are running your own email server, the same applies. Regardless of how slow you start, if your bounce rates are high, opens are low and have too many spam complaints, you're only going to blacklist and damage your own email reputation.