Hello,

Mails from my domain to some domains are being diferred giving this reason:
Code:
host mx.recipienthost.tld [recipient IP] refused to talk to me: 450 4.7.1 client host rejected: cannon find your host name, [my public ip]
Whereas my IP already has been setup PTR record which resolves to my ISP domain name. Is there anything I need to check on my Zimbra server?

Dipesh