SMTP Error (535): Authentication failed in Roundcube Webmail

We were not able to send mails from Round Cube and while trying we were getting this error.

SMTP Error (535): Authentication failed

To fix this we need to make a change  in the RoundCube config file.

In a normal server , roundcube config file will be this  /usr/share/roundcube/config/main.inc.php

To fix this we need to change the below value and save the config file.

$rcmail_config[‘smtp_user’] = ‘%u’;

to

$rcmail_config[‘smtp_user’] = ”;

After this you should be able to send mails without any issues.

 

 

 

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