Vesta Control Panel - Forum

I just found the answer here: https://forum.vestacp.com/viewtopic.php?t=7410


Access denied - Invalid HELO name (See RFC2821 4.1.3)

Edit
vi /etc/exim4/exim4.conf.template

Comments lines
# drop condition = ${if isip{$sender_helo_name}}
# message = Access denied - Invalid HELO name (See RFC2821 4 ...

Hi all.

I am new to Vesta CP and I am performing my first installation (Centos 7).

I have the same problem: I am able to receive emails but unable to send. I got almost the same error message:

Failed to set sender "[email protected]" (Access denied - Invalid HELO name (See RFC2821 4.1.3)).

When ...