Attachment type policy violation Action:deny

Question

Hi Folks, need some help starting to get a little frustrated. So any input is appreciated. My organization is starting to deal with the goverment and will be sending lg. files via email. We use Exchange\Outlook 2010. I have tested from hotmail and get same
results. Here's what I see:
Delivery Notification - file    The mesg or attach. did not reach... Reason: attachment type policy violation (/Analysis.exe)  NOTE: this changes depending on file             
Action:deny
I have gone and increased all my mesg size limits to an incredible lg limit in the Send and Receive Connectors, Transport settings, just about any spot that has to do with a size limitation. Also added the site as a trusted site  under Send conn. Still
no luck. The goverment contact states its our site, works fine with others ones. Any ideas???  Thanks in advance

Answer 1

1-The error message above still says 'attachment type policy'.  Can you tell what host rejected it from the message headers?
2-If you truly think there is a size issue, create a file of a specific size using 'fsutil' and try to send it:
10MB file: fsutil.exe file  createnew C:\temp\testfile2.txt 10000000
Something else to remember is that conversion from Exchange format to an Internet standard inflates the message up to 30% (i forget what the technical aspects are, it was a while ago.)  The Internet standard appears to be 25MB these days (Google, Yahoo,
etc.) so setting your Internet-bound Send Connector 25MB may not work.  My testing resulted in using 17MB on the Internet-bound Send Connector.  This is for total message size, not individual attachments.  If a message has three attachments
of 6MB each it will work fine internally, but is rejected if it is sent to the Internet.