Welcome, if you would like to post a comment please register.
We also encourage you to explore all things Zimbra with our team and members of the community.
Is is possible that zimbra only accepts the EHLO command but not the HELO command?
Can you please tell me how to do it.
I tried the smtp_always_send_ehlo=yes in main.cf
but it didn't helped either.
thanks in advance!!
Bugzilla
Wiki
Source
zimbra HELO/EHLO command 
Linear Mode
