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Asked: 2019-07-27 10:40:00 +0800 CST

Sendmail not sending mail as generic alias

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Following the advice in this answer and the steps listed here, I've added the following to my /etc/mail/sendmail.mc file and compiled it with m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf. The end of.mc file itself:

dnl # Default Mailer setup
dnl # Masquerading options
FEATURE(`always_add_domain')dnl
MASQUERADE_AS(`debian')dnl
FEATURE(`allmasquerade')dnl
FEATURE(`masquerade_envelope')dnl
FEATURE(`genericstable',`hash -o /etc/mail/genericstable.db')dnl
GENERICS_DOMAIN_FILE(`/etc/mail/generics-domains')dnl
MAILER_DEFINITIONS
MAILER(`local')dnl
MAILER(`smtp')dnl

I created the /etc/mail/generics-domains file with:

mylinodeboxdomain.com
avirtualdomain.com

And created the /etc/mail/genericstable file with:

virtualuser    [email protected]

And restarted the sendmail service. Despite that, emails sent by virtualuser still seem to be coming from virtualuser@localhost rather than the desired [email protected]:

Received: from www.avirtualdomain.com (virtualuser@localhost)
    by mylinodeboxdomain.com (8.15.2/8.15.2/Submit) with SMTP id x6QIOIYY002415
    for <[email protected]>; Fri, 26 Jul 2019 14:24:18 -0400

I'm guessing my config is messed up, but as this is all new to me, I'm unsure what to change/remove.

debian

1 Answers

  1. Sendmail ident (and local ident like) info in Received: header

    Received: from www.avirtualdomain.com (virtualuser@localhost) …

    virtuser@localhost identifies local OS user executing sendmail.

    For more details see secriprion of $_ sendmail.cf variable.

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