I am no longer getting any email from my Production Server, even though everything looks fine from the mailsent.log file. If I submit a web form that I know sends email, I can see the email-sending action template come up on FileMonitor, and I see the mail appear in C:\CFusion\Mail\Spool for a second, but it doesn't end up in C:\CFusion\Mail\UnDelivr - a summary just ends up in E:\CFUSION\LOG\mailsent.log and that's it as far as I can tell.
If I bring up the Mail Settings in the ColdFusion Administrator, the Mail Server is set at localhost where it has worked fine up until now. If I check the Verify Mail Server Connection
checkbox and click the Submit Changes button, there is an "Important Notice..." that "ColdFusion connected to your server. Verification completed without error." The Server Port is 25, the Spool Interval is 60 seconds, the Connection Timeout is 60 seconds. The Error Log Severity is set at Warning, and of course the Log all E-mail messages sent by ColdFusion checkbox is checked.
I have tried sending mail to 4 different addresses on three different domains, including an SMS to my cell phone. Nothing works anymore.