EMAIL problem

[netmkd]

MX Record IPs Have rDNS Records
None of your MX record IP addresses have corresponding reverse DNS entries (PTR records). If these MX records are used to send outgoing mail this will cause them to trip anti spam filters. Many SMTP servers will not accept mail from an IP with no reverse DNS.

How to FIX

[Administrator]

you need to contact your hosting provider for rDNS/PTR setup.