dear community, how we can send through a different ip address outgoing from our postfix system? currently inbound all working fine, but outgoing we are on a blacklist. how i can temporary (until we removed from this list) sending out through a 2nd ip? i also have added 2 public ip addresses to our server. thank you so much
You can bind Postfix to a IP, but that would make it unreachable on the old IP. You can change the DNS records of course, but that could result in human error (missing a record when changing it / changing it back). But if that's OK with you, see https://www.faqforge.com/linux/send-all-outgoing-email-trough-one-ip-address-in-postfix/ I would just await the blacklist removal personally.
