Have a signin form on my site, (sells stationery products, nothing against mailchimp TOS). I only have about 15 subsribers so far but I decided to start sending out weekly friday emails with the new products we got in for the week, a discount code and a fun fact about something together with a have a good weekend kind of message. I'm a newbie at this but it seemed like a good idea. Well the first attempt I put a little blurb about the history of fountain pens and a offer code and pictures of some new products. They didn't send it, and suspended my account for unnamed TOS violations because their software flagged me for TOS violation.
This is all very frustrating so I guess it's a two part thing:
1: Any other email marketing services with a free tier that integrate with shopify easily? Mailchimp has a shopify plugin that can sync lists, and also handles the signup form, so it was convenient.
2: Any open source kind of php interface that works like this that I could just self host? I have dreamhost hosting and I could put up my own software but I don't know what's out there.