Can someone recommend an email program
 

Im building an email data base, far from millions but trying to grow it and find a way to send mass emails to customers

yes please, so far they all suck!

Gmail for Business (Google Workspace).

You'll have to read up if they permit adult content. I am only pushing mainstream / vanilla messages through them, but have been very satisfied with the number that gets through to the inbox. Open rate is on you.

I think we are paying approximately 6 USD per account/user. I think by default its set at 2000 emails going out during a rolling 24 hour period of time. Should you need to send more, like 5000-10,000 daily, then you have to connect it to GMass.

The key is to delivery rates and not having any regular issue from Google is to season your email account by taking several proactive steps before you start bulk emailing. You'll want to send and receive emails from others. So write to everyone you know, including other addresses you control, and make sure that they/you respond back with some normal gibberish. If any emails hit the spam folder, then mark them as not spam. Increase the number of outbound emails slowly. I was super conservative, so I started out with a couple dozen daily, then within a couple of weeks, was pushing a couple hundred, then a few more weeks past as I gradually increased the volume being sent to a few thousand. There is a lot that can be learned on YT on how to go about doing this.

Good luck!

I've always encouraged YNOTmail and have used it myself

Hi Joe.

I'll hit you up.