ello we are a corporate email service provider only transactional / business emails.
Once in a while under rare occasions due to customer's email id getting compromised our server's primary ip gets blacklisted in spam databases. So the question is Can we change the outgoing mails' ip address in POSTFIX during such rare occasions only for OUTGOING emails, while having the MX ip without any change. all our services smtp, pop and imap are in the same server. thanks rajesh