Article ID: 125432, created on May 5, 2015, last review on Sep 18, 2015

  • Applies to:
  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux


Emails are not delivered to recepient. The following error is found in Mailenable SMTP log:

  SMTP error from remote mail server after RCPT TO:<>:
  host []: 550 5.7.1 Unable to relay for


Incorrect submission port


Reconfigure the Mailenable SMTP settings:

SMTP -> Properties -> "Inbound" tab -> "Port Settings" Settings


SMTP port = 25
Submission port = 587

Search Words

SMTP error from remote mail server after RCPT

Unable to relay for

Emails are not delivered

a914db3fdc7a53ddcfd1b2db8f5a1b9c 56797cefb1efc9130f7c48a7d1db0f0c 29d1e90fd304f01e6420fbe60f66f838 01bc4c8cf5b7f01f815a7ada004154a2 0a53c5a9ca65a74d37ef5c5eaeb55d7f aea4cd7bfd353ad7a1341a257ad4724a

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