X-Authentication-Warning: serverx.mysite.com: apache set sender to webmaster@yoursite.com using -f
The reason is that you haven't told your mail server to trust apache as a sender. To fix it, edit the file /etc/mail/trusted-users by adding apache to the list.
Reference: Fix for X-Authentication-Warning - HowtoForge Forums | HowtoForge - Linux Howtos and Tutorials.
 Facebook
Facebook
	 Twitter
Twitter
    
         Copy link
        https://swinny.net/Computing/-3739-Sending-Emails-How-to-Remove-the-X-Authentication-Warning
Copy link
        https://swinny.net/Computing/-3739-Sending-Emails-How-to-Remove-the-X-Authentication-Warning