Article ID: 114140, created on Jun 18, 2012, last review on May 11, 2014

  • Applies to:
  • Plesk 11.x for Windows
  • Plesk 10.x for Windows
  • Plesk 9.x for Windows
  • Plesk 8.x for Windows


Mail does not work on the server. It is not possible to establish a connection to port 25.
C:\Users\Administrator>telnet localhost 25

530 mail.domain.tld ESMTP MailEnable Service, Version: 0-5.10- denied access at 06
/13/12 11:11:25

Connection to host lost.

I have ensured that all MailEnable services are up and running.

Cause & Resolution

Refer to this MailEnable article for the cause and resolution:
ME020417 - TRB: SMTP 530 error - denied access

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