Anti-Virus team checked the server and infromed that MSME is the one which is removing the attachment.
I compared the settings on both the server and found that the only difference is 'Enable McAfee Global Threat Intelligence file reputation'
This was unchecked on the Hub1 server and checeked on the Hub2 (problem) server.
So i uncheceked this option on the problem server. But the issue is happening after this also.
1. Is that setting related to the issue? If yes then does it need a service restart [which service will it be]
2. If the issue is not related to this specific setting, is there any other setting that i need to look into in particular.
We have a workaround plan of exporting the settings under 'Settings & Diagnostics' > 'Import and Export Configuration' from the working server to problem server. if we perform that will it need any service restart? if yes what service will it be?
I am little limited on time as we might have to do the export import plan by sunday night EST. i will greatly appreciate if someone will be able to help me out with this at the earlist.