when i check my domain on dnsqueries.com, it returns this for my mail server:
I'm not sure how to fix that? is that something i need to contact my ISP to make a change?
Mail server host name in greeting
The configuration of your mail servers and your DNS are not ok! The report of the test is:
mail.mailserver.net. -> mail.mailserver.net -> xx.104.216.xx -> xx-104-216-xx.uvs.irvnca.sbcglobal.net
Spam recognition software and RFC821 4.3 (also RFC2821 4.3.1) state that the hostname given in the SMTP greeting MUST have an A record pointing back to the