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Date: Sat, 15 Mar 2008 01:35:36 +0100
From: Roberto Nunnari <roberto.nunnari@supsi.ch>
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Subject: sendmail: from virtual address changed to maindomain
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Hi all.

This is driving me mad.. I hope a kind soul can help me out..
This is the relevant environment:

# uname -rms
FreeBSD 6.1-RELEASE-p23 i386

# hostname
jupiter.maindomain.com

# cat /etc/mail/local-host-names
maindomain.com
mydomain1.com

# cat /etc/mail/generics-domains
mydomain1.com

# cat /etc/mail/genericstable
md101        john@mydomain1.com
md102        jack@mydomain1.com

# cat /etc/mail/virtusertable
john@mydomain1.com            md101
jack@mydomain1.com            md102

entries in hostname.mc
FEATURE(virtusertable, `hash -o /etc/mail/virtusertable')
FEATURE(genericstable, `hash -o /etc/mail/genericstable')
GENERICS_DOMAIN_FILE(`/etc/mail/generics-domains')

MX hostnames are all A records.

well, as long as the users receive/send emails from/to external domains
everything works just fine, but when:

john@mydomain1.com sends to jack@mydomain1.com or viceversa

the message gets to the right user, but the from header is
changed to john@maindomain.com, mailbox that doesn't exists!

Any hints/suggestions?

Please, help!

Thank you.
Robi