If I would be involved in the email-business I would use
phplist ("phplist is the world's most popular open source email campaign manager")
some .info domains (must point to your ip, otherwise no inboxing)
1 cheap VPS
If I get a ban, I would move on.
I use AMS, can send unlimited emails.
Yes you need to host them on your server and ideally using an SMTP service like smtp.com or socketlabs. The whole setup can be quite expensive and eventually not worth it of you sent too spammy emails, because even if you use a smtp server, you original DNS, domain name, and IP can get permanently black listedGreat information, but i am a little confused here.
I thought interspire and AMS are both 'software' or 'scripts'? Which means a SMTP is STILL required?