Undeliverable Emails - SMTP Communication Problem - domain does not designate IP as permitted sender
Posted on 2008-06-10
I am having problem sending email to one domain (bandwidth.com) and not to sure if there is anything else I can try. I have a Static IP and hosting Exchange in house off a SBS 2003 server. Trying to reply to a guy at bandwidth.com leaves me with:
"The following recipient(s) cannot be reached:
firstname.lastname@example.org on 6/10/2008 9:58 AM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<domain.com #5.5.0 smtp;550 domain of email@example.com does not designate STATIC IP as permitted sender>
When I try to do a SMTP Connector to go out through our ISP
The following recipient(s) cannot be reached:
firstname.lastname@example.org on 6/10/2008 9:57 AM
The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator.
<mta4.srv.hcvlny.cv.net (tcp-daemon) #5.0.0 smtp;550 domain of email@example.com does not designate 220.127.116.11 as permitted sender>
Anything I can do for that?