reverse path domain has no MX or A records

[boyforeigner]

I am having the following problem when sending to some server:

.........................
The following address(es) failed:

[email protected]
SMTP error from remote mail server after end of data:
host mail1.remotedomain.com [xxx.xxx.xxx.xxx]: 552-MessageWall:
Message score (1) has reached or exceeded maximum (1):
552- 1 RMX/REJECT: mydomain.com: Your reverse path domain has no MX or A records (reply mail would be undeliverable)
552 MessageWall: This message is being rejected
.........................

Any one know how to fix it ?

 

[nickp666]

ensure that the DNS server authorative for the domain actually has A and MX records and is reachable by the destination, also ensure your server IP has a suitable rDNS record as some servers drop e-mail if it doesnt (Your NOC/Connectivity supplier will be able to set this up for you)