Domain of sender address does not resolve

WeMasterz5

Well-Known Member
Feb 24, 2003
361
0
166
Miami
Hello peeps and peepettes

I am having an issue with one domain (not on my servers) when any email is sent from any domains on my server it returns with

Delay reason: SMTP error from remote mailer after RCPT
TO:<[email protected]>: host mail.domainname1.com
[00.00.00.000]: 451 4.1.8 Domain of sender address
[email protected] does not resolve


can anyone point me to some info on what maybe causing this and why

Thanks