SMTP Question

Giganews Newsgroups
Subject: SMTP Question
Posted by:  Randy Adanza (delphig…
Date: Wed, 7 Sep 2005


I have this application that sends out an email to the customer, during
development the SMTP sending works out fine but as soon as the application
was deployed to the clients site I got this error:

sorry, that domain isnt in my list of allowed rcpthosts (#5.1.7)

note that the SMTP settings are still the same, and that the application
when run from our side is perfectly fine, what could be wrong here? also our
old backups can send out the emails as well with no issues.

What could be wrong with this picture?