421 smtp out of connection slots

Discussion in 'Mail Server Support' started by popowich, Oct 15, 2011.

  1. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:

    Did you get the error "smtp out of connection slots". There could be a problem with how fast and and how emails you are sending to a certain domain, but most likely it's a resource problem with the mail server for the person you are trying to reach.

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