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  1. Jenkins
  2. JENKINS-68518

Email-ext treats transient SMTP errors as fatal errors


      I have an email server that occasionally returns an SMTP 421 error when Jenkins tries to send an email.  According to the SMTP specification, this is a transient error, however email-ext treats it as a permanent error and gives up on sending the message.

      It would be better if email-ext could recognize SMTP 4yz errors as transient, and wait and try again instead of failing immediately.

            slide_o_mix Alex Earl
            anfrind Lincoln Peters
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