I've used postfix+dovecot for a while and it's fairly easy. Main issue is you need a static IP (not on a consumer/residential subnet) with reputation. To be safe, you really need a /24 subnet since some blacklists will lost entire net blocks if they get enough complaints.
Even with DKIM, SPF, DMARC, and a PTR record, it was quite difficult to get Outlook/Microsoft to accept emails without them going to spam. I think they have some sort of form you can submit but it took lots of tries
If you don't have a static IP, you have to pay for a relay.
Comments
I've used postfix+dovecot for a while and it's fairly easy. Main issue is you need a static IP (not on a consumer/residential subnet) with reputation. To be safe, you really need a /24 subnet since some blacklists will lost entire net blocks if they get enough complaints.
Even with DKIM, SPF, DMARC, and a PTR record, it was quite difficult to get Outlook/Microsoft to accept emails without them going to spam. I think they have some sort of form you can submit but it took lots of tries
If you don't have a static IP, you have to pay for a relay.