Applicable to:
- Plesk for Linux
Symptoms
-
Unable to send mail messages;
-
The following error could be found in
/var/log/maillog:CONFIG_TEXT: postfix/smtpd[25002]: connect from example.com[127.0.0.1]
postfix/smtpd[25002]: warning: SASL: Connect to private/auth failed: Connection refused
postfix/smtpd[25002]: fatal: no SASL authentication mechanisms
postfix/master[24991]: warning: process /usr/libexec/postfix/smtpd pid 25002 exit status 1
server postfix/master[24991]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling -
Parameter
smtpd_sasl_typeis enabled in/etc/postfix/main.cffile.# grep smtpd_sasl_type /etc/postfix/main.cf
smtpd_sasl_type = *** - When sending email using Horde webmail, the following errors appear in the
/var/log/psa-horde/psa-horde.logwith the enabled debug:CONFIG_TEXT: ERR: HORDE [imp] Error connecting to SMTP server ERR: HORDE [imp] Error when communicating with the server
Cause
Misconfiguration in /etc/postfix/main.cf file.
Resolution
Note: if direct SSH access to the server is not possible, contact server administrator for further assistance
-
Log in the server via SSH;
-
Open the file
/etc/postfix/main.cfin any text editor and remove the string withsmtpd_sasl_typeparameter. -
Reload postfix service:
# service postfix reload
Note: By default, Postfix SMTP server configured by Plesk uses Cyrus SASL implementation.
Comments
3 comments
Hello Yves,
The smtp_sasl_type parameter is defined to choose he SASL plug-in type that the Postfix SMTP client should use for authentication. The available types are listed with the "postconf -A" command.
If the string is not defined, the SASL authentication will be still in use, but without plugins. If it is needed to disable SASL authentication, please change the
smtpd_sasl_auth_enable =yes
to
smtpd_sasl_auth_enable = no
In the same configuration file.
You can read more about both parameters in official postfix documentation:
http://www.postfix.org/postconf.5.html#smtp_sasl_type
Thank you Konstantin. You give me the exact solution.
Indeed ! postconf -A gives cyrus.
So, I changed smptd_sasl_type = dovecot to smptd_sasl_type = cyrus
It seems it works fine now !
I have the same problem and my string is smtp_sasl_type = dovecot
If the string smtp_sasl_type is removed, does that mean sasl is disabled ?
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