First, apologies if this question is too vague or has too little information to really be answerable. I am not normally working with these issues, and I don't have full access to
the environment. However,
the hosting provider seems to have a hard time tracking down
the issue, so I am hoping that someone can at least provide me with some qualified guesses about
the most likely problem.
Here goes: A client I work for has a hosted IT environment, based on virtual machines running Windows 2008 R2 Standard. Our website, based on Coldfusion 9 was recently migrated from one virtual
machine to another, and though Coldfusion is configured
in the exact same way, using
the same SMTP server, i.e.
the client's Exchange server hosted
in the same environment and
in the same AD as both web servers, sending emails to external recipients is no longer working. It is still working fine when testing from
the old
machine.
This is what I've learnt so far (all emails are sent using a valid from-address on
the client's domain):
Emails sent to other recipients on
the same domain are delivered without any problem.
Emails sent to external recipients on other domains are never delivered.
When sending emails to both internal and external recipients, no emails are delivered.
When receiving one of these emails to an internal address,
the sender is now indicated as "
[email protected]", while when sent from
the old
machine, it used to say just "sender". This seems to me that it could hint that
the Exchange
machine "recognizes"
the old web server while it is a stranger to
the new.
In Coldfusion's mail log, all messages appear to be successfully delivered to
the SMTP server.
Any ideas what settings to look at, what log entries to search for or how to compare
the old web server with
the new one will be highly appreciated.
