Applicable to:
- Plesk for Linux
Symptoms
-
While trying to send an email via Roundcube, the following error appears:
SMTP Error (535): Authentication failed
-
compatibility_levelvalue was previously defined in/etc/postfix/main.cfas following:compatibility_level=2
In /var/log/maillog following entries can be found:
warning: SASL authentication failure: cannot connect to saslauthd server: No such file or directory
warning: SASL authentication failure: Password verification failed
warning: localhost[::1]: SASL PLAIN authentication failed: generic failure
Cause
The root cause is under investigation.
Resolution
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Login to the server via SSH.
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Create a backup of
/etc/postfix/master.cf:# cp -p /etc/postfix/master.cf /etc/postfix/master.cf_bck
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Check SMTP daemon configuration:
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If RHEL/CentOS/CloudLinux is used, verify that chrooted mode is disabled:
# egrep "^smtp " /etc/postfix/master.cf | grep inet
smtp inet n - n - - smtpd -
If Debian/Ubuntu is used, verify that chrooted mode is enabled:
# egrep "^smtp " /etc/postfix/master.cf | grep inet
smtp inet n - y - - smtpd
-
-
Reload postfix configuration:
# service postfix reload
Comments
1 comment
But how should this fix it ?
We just check something here but change nothing.
I have this issue and don't know how to fix it
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