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How to have sendmail write server IP in headers [migrated]

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linux-howto

http://serverfault.com – I'm experiencing a lot of bounced emails after a recent change in hosts. What is happening, and may very well be correct, is that I will send mail from my MTA at home through my server and the server authenticates via STARTTLS and relays the mail using my home IP address. I don't recall this behavior from our old server. What I recall is that the server's IP address would be used in the from header. Is there a way to use the server's IP address in place of my home IP? What I find is that most dynamic IPs are blacklisted, causing many of my mails to bounce. I'm not sure what I need to do this (HowTos)