Is your mail server an open relay?

Posted in Security by Kevin Henrikson on the October 25th, 2005

Some of you may already know about this but for those who don’t or forgot. After setting up your mail server you should run a mail relay test. This will run several tests against your MTA and verify it’s properly configured. By default Zimbra ships postfix such that it’s not a relay. However any custom config may open your server up for abuse. Always better to check before a spammer finds you!


One Response to 'Is your mail server an open relay?'

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  1. Hostilio said,

    on October 23rd, 2008 at 10:41 am

    Hello,

    I want to known if it´s possible to install zimbra as only MTA (relay mail server) with anti-spam and anti-virus running for my exchange mail server supposing that the all server is behind firewall(IPCOP) on my internal network.

    Regards,
    Hostilio

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