List of file attachments types that are blocked by the incoming/outgoing mail server.
Files with the following extensions will be stripped from attachments by the email server.
Note: This applies for Exchange users sending or receiving email from my.fit.edu and external email addresses.
Archive Files: ZIP, TAR, GZ, and RAR containing files with the extensions below will be blocked.
Extension | Reason |
.bat | Batch files are often malicious |
.chm | Compiled help files are very dangerous in email |
.cmd | Batch files are often malicious |
.cnf | SpeedDials are very dangerous in email |
.com | Executable DOS/Windows programs are dangerous in email |
.cpl | Control panel items are often used to hide viruses |
.exe | Executable DOS/Windows programs are dangerous in email |
.hta | HTML archives are very dangerous in email |
.ins | Windows Internet Settings are dangerous in email |
.lnk | Eudora *.lnk security hole attack |
.mhtml | MHTML files can be used in an attack against Eudora |
.pif | Shortcuts to MS-Dos programs are very dangerous in email |
.scf | Windows Explorer Commands are dangerous in email |
.scr | Windows Screensavers are often used to hide viruses |
.vb? | Visual Basic Scripts are dangerous in email |
.ws | Windows Script Host files are dangerous in email |
.xnk | Microsoft Exchange Shortcuts are dangerous in email |