Attachment blocks
In order to protect our users against unknown viruses, we block
attachments that have any of the filename extensions listed below.
This list is based on the
"dangerous
attachment types" blocked by Microsoft Outlook. You can bypass
this block by enclosing your attachment in a
zip file.
More details about our email scanner can be found on another page.
In this table, [] means any of the enclosed letters, and []? means an optional letter.
| .ad[ep] | Microsoft Access file |
| .app | executable application |
| .asp | Microsoft Active Server Page |
| .bas | BASIC source code |
| .bat | Microsoft command script |
| .cer | security certificate |
| .chm | compiled HTML help |
| .cmd | executable command |
| .com | executable command |
| .cpl | Microsoft Windows control panel |
| .crt | security certificate |
| .exe | executable program |
| .fxp | FoxPro code |
| .gadget | Microsoft Windows Vista gadget |
| .hlp | Microsoft Windows help file |
| .hta | hypertext application |
| .inf | information / setup file |
| .ins | Internet communications settings |
| .isp | Internet service provider settings |
| .its | Internet document set |
| .jse? | JavaScript code |
| .lnk | Microsoft Windows shortcut |
| .ma[dfgmqrsuvw] | Microsoft Access |
| .md[abetwz] | Microsoft Access |
| .msc | Microsoft management console snap-in |
| .ms[ip] | Microsoft Windows installer file |
| .mst | Microsoft Windows SDK setup script |
| .ops | Microsoft Office profile settings |
| .pcd | Microsoft Visual Test script |
| .pif | Microsoft Windows program information file |
| .prf | Microsoft Windows system file |
| .prg | executable program |
| .reg | registry data |
| .scf | Microsoft Windows Explorer command |
| .scr | Microsoft Windows screen saver |
| .sct | Microsoft Windows script component |
| .shb | Microsoft Windows shortcut into a document |
| .shs | Microsoft Windows scrap object |
| .url | Internet location |
| .vb[es]? | Microsoft Visual Basic code |
| .vsmacros | Microsoft Visual Studio macro |
| .vs[stw] | Microsoft Visio file |
| .ws[cfh]? | Microsoft Windows Script |
| .ani | Microsoft Windows mouse cursor |
| .cab | Microsoft installation archive |
| .cnf | Microsoft SpeedDial configuration |
| .cur | Microsoft Windows mouse cursor |
| .ico | Microsoft Windows icon |
| .job | Microsoft Windows scheduled task |
| .xnk | Microsoft Exchange shortcut |
| .{long-encoded-string} | Microsoft Windows CLSID hidden file type |