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Thread: Accepting mail for non existant mailbox or alias

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    bradb21's Avatar
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    Default Accepting mail for non existant mailbox or alias

    I'm seeing a weird problem and was wondering if anybody had any ideas.

    My mailbox on the server is brad@domain.com.... The server accepted an email today for bradb@domain.com and delivered it to the brad@domain.com mailbox. I looked and I have no alias for "bradb". What is the deal? This email should have been rejected as non existent account?

    EDIT: After looking at logs on my spam gateway... I've come up with the following. Before my gateway accepts email from the internet will do address verification against the MTA. In the past when I was running Postfix as my MTA if the mailbox did not exist it would tell the gateway that when it did the check and my gateway would reject the email. What looks to be happening now is that my gateway checks to see if the mailbox is valid and Zimbra seems to answer back that is is valid, and then when my gateway passed the email on to the MTA I see a bounce in the /var/mail/log on my Zimbra server.
    Last edited by bradb21; 08-23-2007 at 07:53 PM.

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    bradb21 is offline Advanced Member
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    I found a post that sounded similar and it said to edit my
    zmmta.cf file and change the
    POSTCONF smtpd_reject_unlisted_recipient setting from No to Yes

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    phoenix is offline Zimbra Consultant & Moderator
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    That change will require a postfix restart on the Zimbra server. Have you ever created a catch-all account on our server? You can check that with:

    Code:
    zmprov gd domain.com | grep  zimbraMailCatchAllAddress
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    bradb21's Avatar
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    Quote Originally Posted by phoenix View Post
    That change will require a postfix restart on the Zimbra server. Have you ever created a catch-all account on our server? You can check that with:

    Code:
    zmprov gd domain.com | grep  zimbraMailCatchAllAddress
    I did the zmmta.conf change and did the postfix reload last night and it seemed to do the trick. I just wanted to make sure I didn't mess anything else. It seems like this change is what I was looking for.

    I didn't set up any catch-alls as I don't like them because they tend to be spam magnets. Thanks for the command to verify! I ran it as the zimbra user and no results. It was weird it's almost like the MTA was doing a fuzzy address match or something???

    Thanks!!!!

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