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Thread: Limit the number of cc/bcc/to recipients?

  1. #1
    keithop is offline Senior Member
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    Default Limit the number of cc/bcc/to recipients?

    Hi,

    Maybe I've missed it in the GUI but is there a way to limit the amount of recipients to prevent spammers signing up and using the server to spam through?

    Thanks,
    Keith

  2. #2
    Klug's Avatar
    Klug is offline Moderator
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    Hello.

    I don't get it : you let anyone create an account on your Zimbra setup?

  3. #3
    keithop is offline Senior Member
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    Hello,

    We host zimbra, so it's not the same situation as just running a single server for a company

  4. #4
    Klug's Avatar
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    Oh, I see...

    I don't think there's something in the WebUI.
    Can't you setup postfix to avoid hamering from one email address (problem is the same from "direct" SMTP connections, isn't it?).

  5. #5
    keithop is offline Senior Member
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    Hi,

    I'm more of an exim guy than a postfix (prior to zimbra at least), so I'm hoping someone has a good suggestion ;-)

    On our exchange servers, we can very clearly set such limits, so I'm rather hoping there's a similar solution somewhere for zimbra

    Cheers,
    keith

  6. #6
    rdunn is offline Junior Member
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    I am no expert but you may have a look at the following. 1000 is the default setting for each.

    su - zimbra
    postconf -e 'smtpd_recipient_limit = 1000'
    and
    postconf -e 'smtpd_recipient_overshoot_limit = 1000'

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