Monitoring and notification of excessive SMTP usage

Discussion in 'General' started by Airbag888, Aug 14, 2017.

  1. Airbag888

    Airbag888 New Member


    I'm on ISPConfig 3 and we've been hit twice by a spamming bot that figured out the credentials (via w/e method) to a mailbox account. We ended up disabling the account but we'd been flagged in spammer database in the mean time.

    Is there a way to have a daemon monitor usage of smtp/postfix and alert us when a user goes well beyond normal average usage?

  2. Jesse Norell

    Jesse Norell Well-Known Member Staff Member Howtoforge Staff

    I don't know of software which tracks how much mail users send and tries to determine what "normal" is for them, but if you can determine that yourself (ie. come up with some limit(s) above which you want to be notified), you could use postfwd (use the 'sendmail' action to send you mail when the limit hits).

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