I was getting this error when I try to set up a subscription in Microsoft SQL Reporting Services:
Failure sending mail: The message could not be sent to the SMTP server. The transport error code was 0x800ccc15. The server response was not available...


After doing some research, I was pointed to my McAfee Antivirus program.

McAfee has a rule built into the app to block port 25 to all applications other than those that are named in the rule. So to fix this I needed to add the process that sends the mail.

My online research kept telling me I needed to add this process: aspnet_wp.exe. This was not working, however. After some trial and error, I figured out that 'ReportingServic' was the process that I needed to add.

Step-by-Step Instructions

Open up the McAfee Virusscan Console
Open the Properties Dialog Box for 'Access Protection'
Highlight this rule: 'Prevent mass mailing worms from sending mail'
Click EDIT
At the bottom where it says 'Excluded Processes', add this process to the list 'ReportingServic'.
Click OK all the way out

Wednesday, October 26 @ 09:40:33 BST