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pjc50
Asked: 2014-04-02 02:25:52 +0800 CST

Understanding sendmail -bt in conjunction with aliases

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I'm familiar with exim and the behaviour of exim -bt in indicating how a message will be routed. I'm trying to set up a trivial sendmail configuration to route root mail on a local system to my company email address.

# tail /etc/aliases

# Person who should get root's mail
root:       [email protected]

Having run newaliases, this currently works properly. But I can't understand how to verify that locally with -bt.

# sendmail -bt
ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>
> /try smtp root
Trying envelope recipient address root for mailer smtp
canonify           input: root
Canonify2          input: root
Canonify2        returns: root
canonify         returns: root
2                  input: root
2                returns: root
EnvToSMTP          input: root
PseudoToReal       input: root
PseudoToReal     returns: root
MasqSMTP           input: root
MasqSMTP         returns: root < @ *LOCAL* >
EnvToSMTP        returns: root < @ olympus . domain . >
final              input: root < @ olympus . domain . >
final            returns: root @ olympus . domain
Rcode = 0, addr = [email protected]
> 3 root
canonify           input: root
Canonify2          input: root
Canonify2        returns: root
canonify         returns: root
> /try local root
Trying envelope recipient address root for mailer local
canonify           input: root
Canonify2          input: root
Canonify2        returns: root
canonify         returns: root
2                  input: root
2                returns: root
EnvToL             input: root
EnvToL           returns: root
final              input: root
final            returns: root
Rcode = 0, addr = root
>

What should I be entering that starts with root and outputs [email protected]?

email

1 Answers

  1. Try sendmail -bv root.
    It should show how where sendmail is going to deliver messages for given recipient.

    man sendmail :

       -bv    Verify  names only - do not try to collect or deliver a message.
          Verify mode is normally used for  validating  users  or  mailing
          lists.

    If you want to see also processing by internal rulesets then add -d21.12 debugging switch to -bv.

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