I am having a problem emailing a particular person, the email worked fine last week, but now when I try, I get this message back from my server:
Your message did not reach some or all of the intended recipients.
Sent: 03/10/2007 16:36
The following recipient(s) cannot be reached:
'email - deleted for privacy'' on 03/10/2007 16:36
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<my email domain here #5.5.0 smtp;550 Warning - Reverse DNS lookup failed for host My server static IP here.>
I would appreciate some help to work out why.
When I check my domain for reverse DNS here: http://www.mxtoolbox.com/diagnostic.aspx
it comes back ok..