Testing Zimbra email routing

emailemail-servereximpostfixzimbra

I am an experienced Exim user and just recently testing Zimbra Open Source, and I am loving it already.

However, I am used to this command whenever I wanted to test email routing in the email server, whether I am testing for the routing of local users, local email addresses and external email addresses:

root@localhost# exim -bt alias@localdomain.com
user@thishost.com
    <-- alias@localdomain.com
  router = localuser, transport = local_delivery

root@localhost# exim -bt user@thishost.com
user@thishost.com
  router = localuser, transport = local_delivery

root@localhost# exim -bt user@remotehost.com
  router = lookuphost, transport = remote_smtp
  host mail.remotehost.com [1.2.3.4] MX=0

Got the above cheatsheet years ago from http://bradthemad.org/tech/notes/exim_cheatsheet.php.

How can I do this with Zimbra/Postfix? I am searching everywhere on how to do this, but couldn't found any.

Thanks!

Best Answer

Try this command

/usr/sbin/sendmail -bv address.

sendmail binary from postfix has special options -bv

-bv    Do not collect or deliver a  message.  Instead,  send  an  email
       report  after  verifying each recipient address.  This is useful
       for testing address rewriting and routing configurations.

This command also can be found in postfix documentation:

Excerpt from the page

Postfix version 2.1 and later can produce mail delivery reports for debugging purposes. These reports not only show sender/recipient addresses after address rewriting and alias expansion or forwarding, they also show information about delivery to mailbox, delivery to non-Postfix command, responses from remote SMTP servers, and so on.

Unlike utility from exim which give result in the stdout, postfix will send the report to user who invoke above command. Also zimbra will place sendmail binary in its unusual directory, so you must invoke it by issuing the full path command.

/opt/zimbra/postfix/sbin/sendmail -bv address
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