I want to host a mail infrastructure using a scalable service (like Nodejitsu or EC2 with ELB). The servers actually should have static IPs (I think) but the ELB would route the requests to the correct instance.
Now I wondered if I might run into blocklist issues. Any advice on setting this up?
We use a custom implemented SMTP (written in NodeJS) to tie in very tightly with our product. It does NOT have to be AWS/EC2, it was just a suggestion. But we would prefer a scalable cloud product like Nodejitsu that's very easy to set up.