I'm receiving failure notices with the following message. These people have obviously popped messages, but can't receive them any suggestions? Thanks.

208.45.133.107 does not like recipient.
Remote host said: 554 Client host rejected: There is a problem with your email system. Please contact your administrator - forward and reverse DNS must match for your host, [63.251.4.26]
Giving up on 208.45.133.107.

My Communities:
http://messages.cruisecritic.com
and
http://messages.independenttraveler.com

Hi Laura,

Is this the error you are getting in email bounces? It looks like your user's email addresses are rejecting the notification emails for one reason or another. Is that the entirety of the error message that you received, or is there more to it?

I'll forward to one of our system administrators to see if they can figure out what's up.

Regards,

Brian Lenz
Infopop Corporation

Brian, that is the entire message except that the IP addys change. And they must be bounce-backs that people have popped, but aren't receiving. Thanks for your help.

My Communities:
http://messages.cruisecritic.com
and
http://messages.independenttraveler.com