First thing this morning I picked up where I left off yesterday in trying to track down the cause of my recent server malfunctions. No answer from Grisoft yet, but no big surprise there. I expanded my system log search by logging every security event I could get my hands on in the policies. I noticed that IME_User and IME_Admin were generating login failures in the logs. These are the users that Mailenable uses in its webmail and webmail administration applications. I’ve seen them in IIS before. There’s a connection to the issue that started this whole mess.

I used Mailenable’s MEInstaller application to perform the web application set up steps as per the directions found on Mailenable’s site. I still got the same

HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.

And my other IIS asp.net applications are now requesting windows credentials. These all use the IUSR_<machinename> account. Apparently the problem is spreading.

I just noticed that I can no longer connect to my FTP server with any of the credentials I know to be correct.  I rebooted the server and all my asp.net applications are back to normal. However, I still cannot connect to ftp or use the Mailenable webmail application.

There is trouble in Dodge, folks.