The following are the recommended files to block by extension name in ScanMail for
Exchange.
| .386 | Windows Enhanced Mode Driver or Swap File | |
| .ACM | Audio Compression Manager Driver (Windows) and Windows System File | |
| .ASP | Active Server Page | |
| .AVB | Innoculan Anti-Virus Virus Infected File | |
| .BAT | Batch Processing | |
| .BIN | Binary File | |
| .CLA | Java Class File (usually .CLASS but can be shortened) | |
| .CLASS | Java Class File | |
| .CMD | OS/2, WinNT Command File, DOS CP/M Command File, dBase II Program File | |
| .CNV | MS Word Data Conversion File | |
| .COM | Executable File | |
| .CS* | Corel Script | |
| .DLL | Dynamic Link Library | |
| .DRV | Device Driver | |
| .EXE | Executable File | |
| .GMS | Corel Global Macro Storage | |
| .HLP | Windows Help File | |
| .HTA | Hypertext Application (run apps from HTML doc) | |
| .HTM, and .HTML | Hypertext Markup Language (HTML) | |
| .HTT | Hypertext Template | |
| .INF | Information or Setup File | |
| .INI | Initialization file (many) | |
| .JS*, JS or JSE | JavaScript Source Code | |
| .LNK | Linker File, Windows Shortcut File | |
| .MHT* | MS MHTML Document (Archived Web Page) | |
| .MPD | Mini Port Driver | |
| .OCX | Object Linking and Embedding (OLE) Control Extension | |
| .OV* | Program Overlay File (.OVL) | |
| .PIF | Windows Program Information File | |
| .SCR | Screen Saver Script | |
| .SHS | Shell Scrap Object File | |
| .SYS | System Device Driver | |
| .TLB | Remote Automation Truelib Files | |
| .TSP | Windows Telephony Service Provider | |
| .VBS | Visual Basic Script | |
| .VBE | Visual Basic Script Encrypted | |
| .VXD | Virtual Device Driver | |
| .WBT | WinBatch Script | |
| .WIZ | Wizard File | |
| .WSH | Windows Script Host Settings File | |
The following extension files can be blocked if the company does not encourage the exchange of any files
| .CD* | Corel Graphic and Corel Draw Template | |
| .CPT | Corel PhotoPaint | |
| .DO* | Documents | |
| .DVB | AutoCAD | |
| .EML | MS Outlook Express Electronic Mail | |
| .MD* | Microsoft Access Database File | |
| .MHT* | MS MHTML Document (Archived Web Page) | |
| .MPP | MS Project File | |
| .MPT | MS Project Template File | |
| .MSG | Program Message, OzWin Message/Mail File, MS Mail Message | |
| .NWS* | MS Outlook Express News File | |
| .VS* | Visio Drawing | |
| .WBK | Word Backup and WordPerfect Workbook | |
| .WPD | Corel Word Perfect | |
| .XL* | Spreadsheets | |
| .SMM | Ami Pro Macro | |
| .SHW | Corel Presentation | |
| .POT | PowerPoint Template | |
| .PP* | PowerPoint File | |
| .QPW | Corel Quatro Pro | |
| .OBD | MS Office Binder | |
| .RTF | Rich Text Format | |