Applicable to:
- Plesk 11.x for Windows
Symptoms
Port 25 is closed, so submission port is used. Autoreply does not work. In event viewer:
Log Name: Plesk
Source: plesksrv.exe
Date: 8/4/2016 8:55:38 AM
Event ID: 1
Task Category: None
Level: Warning
Description:
The event class for this subscription is in an invalid partition (COM Error 8004020F, Description: The server rejected one or more recipient addresses. The server response was: 550 This mail server requires authentication (1) when attempting to send via this SMTP (submission) port.)
at sendMail(plesktest@domain.tld, plesktest1@domain.tld)
at (MessageProcessor::sendMail line 504)
Execute file name: C:\\Parallels\\Plesk\\admin\\bin\\plesksrv.exe
Cause
Invalid External SMTP Server Settings - username/password is required in case of 587 (submission) port is used.
Resolution
- Go to Plesk-> Tools & Settings > External SMTP Server Settings
- Set username and password
- Click to "OK" button
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