Issue Plesk Obsidian Roundcube SMTP Error (535)

[Pradeep]

Hello,

I recently update plesk to Obsidian Version 18.0.21 Update #2 and after update I am not able to send email from roundcube and getting error: "SMTP Error (535): Authentication failed.". Please help

Regards,
Pradeep

 

[bulent]

it will be great to update roundcube to 1.4

 

[Pradeep]

Same issue with horde. Any other solution please?

 

[IgorG]

Try to do following:

1. Create a backup of the original file:
   
   # cp -a /etc/postfix/master.cf{,.bkp}
   
   
2. Modify /etc/postfix/master.cf file by changing from:
   
   

   smtps inet n - - - - smtpd -o smtpd_tls_wrappermode=yes

   
   To:
   
   

   smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes

   
   
3. Restart Postfix:
   
   # service postfix restart
   

 

[Pradeep]

Try to do following:

1. Create a backup of the original file:
   
   # cp -a /etc/postfix/master.cf{,.bkp}
   
   
2. Modify /etc/postfix/master.cf file by changing from:
   
   

   smtps inet n - - - - smtpd -o smtpd_tls_wrappermode=yes

   
   To:
   
   

   smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes

   
   
3. Restart Postfix:
   
   # service postfix restart

The value is already same as mentioned by you.

smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes

Please help