Hi guy hope you all can help.
I recently setup my first mail server.
It is working quiet well, except for this error, on some of the mails that goes out.
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <mydomain.co.za #5.5.0 smtp;550 Helo command rejected: Access-Denied (mydomain.co.za)>
I have tried chenging it from helo ehlo, and back, but can't fix it.
not sure how to address this issue.
Please could any one help.
Thank be grand