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PHP queuing one message at a time?

Discussion in 'E-mail Discussion' started by brt, Oct 25, 2017.

  1. brt

    brt Well-Known Member

    Jul 9, 2015
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    Have a PHP mailing list app that is being used to send out a small newsletter to ~180 members of a local group.

    At some point, this has stopped working smoothly, and the app isn't updated/supported anymore, but it doesn't appear to be a fault of the app.

    You hit send in the app, and using either plain PHP mail OR a real smtp account on the same server, it doesn't just queue the messages like it used to. Now every message waits on the previous one to enter the queue, process, and be gone before the next one arrives.

    It makes sending 180 messages take 10+ minutes instead of mere seconds like it used to. And yes, I realize that 180 message should probably send regardless faster than that. I haven't seen any other server problems though.

    Any ideas on if this is something server-related?
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

    Apr 11, 2011
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    Do you see an entry such as "no immediate delivery: more than 30 messages received in one connection" message" in /var/log/exim_mainlog during the initial delivery attempt? If so, you can adjust the "smtp_accept_queue_per_connection" value in "WHM >> Exim Configuration Manager >> Advanced Editor" if you'd like to increase the defined limit.

    Thank you.
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