Description: Here we’ll explain about the error we are facing while installing the squirrlmail client and Postfix server.
The main error is: ERROR: Message not send Server Replied Temporary authentication failure 454 4.7.1<mail>:Relay access denied.
Here is the simple solution which you need to follow to resolve the error:
You need to open the file in your favorite editor and change the following:
There is a line smtp_auth:
Change smtp_auth_mech to none if it is login
This is all and you get the solution.