VestaCP Exim 550 Access denied – Invalid HELO name (See RFC2821 4.1.3)

Hello, If you get this problem on your vestacp server.. centos 7 you can easy solve this issue with changeing som,e things in your exim.conf
edit /etc/exim/exim.conf

And comment these lines:

# drop condition = ${if isip{$sender_helo_name}}
# message = Access denied – Invalid HELO name (See RFC2821 4.1.3)

that should fix your problem.. enjoy.