Yes, to minimize the spread of email-borne virus attacks and in accord with "best practices," email attachments into or out of the @hawaii.edu email servers are scanned and handled in the following ways:
During times of high infection with an unknown virus, ITS reserves the right to block or delete messages with encrypted zip attachments as necessary to preserve email service to the UH community. Please visit http://www.hawaii.edu/technews/ for attachment filtering status information.
Remember that attachments are one of the primary ways to become infected with a virus. Email users are responsible for determining if attachments are legitimate files expected from a colleague or friend. ITS strongly recommends deleting any attachments received from an unfamiliar source.
| *.ade | *.adp | *.bas |
| *.bat | *.chm | *.cla |
| *.class | *.cmd | *.com |
| *.cpl | *.crt | |
| *.exe | *.hlp | *.hta |
| *.inf | *.ins | *.js |
| *.jse | *.lnk | *.msc |
| *.msi | *.mst | *.ocx |
| *.pcd | *.pif | *.reg |
| *.scr | *.sct | *.shb |
| *.shs | *.url | *.vb |
| *.vbs | *.vbe | *.wsf |
| *.wsh | *.wsc | |
| *.???.exe | *.???.lnk | *.???.pif |
The only double extensions that are being dropped are the ones that end in .exe, .lnk, and .pif
ref: http://www.hawaii.edu/its/email/emailpractices.html#attach