Helo, we have already working an Interspire + PowerMTA with 8 rotated IPs, but have some questions.
1.- With Interspire or PMTA is it possible to send hotmail emails to a different MTA / SMTP server? We've seen that all network is locked by microsoft and we don't know if we will get a fix from our provider. We're looking for an easy and fast way. We already have other SMTP servers that are not banner or blacklisted.
2.- Is it possible to create in interspire a subscription list and make Interspire to sign incoming SMTP emails with unsubscription text and link ? we want to send invoices to this list, invoices are coming from external PHP application.
3.- How to warm up IPs (sending legitimate emails, subscriptions and never SPAM) and get the largest sending rate without having emails to send ? We know how is the process but we don't have so many subscribers to fill the suggested sending rates for one month.
We're hiring a tech for long relationship. The PMTA expert must have a lot of experience with all email marketing tools and must be really affordable. There will come bigger projects soon. There we will make good money.