Hi,
Checked with dnsreport.com and got this:
---
WARNING: One or more of your mailservers does not accept mail in the domain
literal format (user (at mark) [0.0.0.0]). Mailservers are technically required
RFC1123 5.2.17 to accept mail to domain literals for any of its IP
addresses. Not accepting domain literals can make it more difficult to test
your mailserver, and can prevent you from receiving E-mail from people
reporting problems with your mailserver. However, it is unlikely that any
problems will occur if the domain literals are not accepted (mailservers at
many common large domains have this problem).
mx1.compros.co.il's postmaster (at mark) [212.179.113.184] response:
>>> RCPT TO:<postmaster (at mark) [212.179.113.184]>
<<< 550 5.7.1 <postmaster (at mark) [212.179.113.184]>... Relaying denied
---
212.179.113.184 is included in 'Relay Email From Hosts/Domains/IP Addresses'
in GUI. Btw, why it has 'optional' in GUI?
Best,
--
Arthur Sherman
+972-52-4878851
CPTeam