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Too many concurrent SMTP connections from this IP address

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  • Too many concurrent SMTP connections from this IP address

    hi everyone.
    i received a lot of messages as "Fail-info: Too many concurrent SMTP connections from this IP address; please try again later. " for some accounts in my queue list .
    there is usually a special account in fail info :
    rcptList

    how do i solve it?
    thx alot.

  • #2
    Hello,

    Most probably your mail server is generating more SMTP-Outgoing sessions than the remote server is allowing. Are you using an SMTP relay gateway for sending your messages to the external domains?

    BR,
    Ioan

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