Please enable JavaScript to view this site.

SecurityGateway for Email Servers v9.0

Navigation: Security > Filtering

Attachment Filtering

Scroll Prev Top Next More

You can use the options on this page to designate specific types of files that will cause a message to be either blocked or quarantined when one of those files is attached. You can define the filtering restrictions both globally and per domain.

Attachments to Block

Specify file types in this section that you wish to block. When a message has one of these file types attached it will be refused during the SMTP process.

If you list the same file type in both the Block and Quarantine section, messages containing attachments of that type will be blocked, they will not be quarantined.

Add

To add a new file type to the block list, enter it here and click Add.

Remove

To remove a file type from the block list, select the file from the list and click Remove. You can select multiple files by pressing CTRL while selecting them.

Suggestions

These links provide a quick way to add common file types to the block list. Simply click a link and those types of files will be added.

Block executable files:

This link adds APP, CMD, COM, DMG, EXE, HTA, PIF, SCR, and VBS to the block list.

Block image files:

Clicking this link adds the following image file types to the block list: BMP, GIF, JPG, PNG, TIF, TIFF.

Block movie files:

Click this link to block these movie file types: 3GP, ASX, AVI, DIVX, M4U, MOV, MP4, MPEG, MPG, QT, RM, RTS, SWF, WM, WMV.

Block audio files:

This link blocks the following audio file types: AAC, AIF, AIFF, AU, CDR, M3U, M4A, MID, MIDI, MOD, MP3, OGG, RA, WAV, WAVE.

Block compressed files:

This link adds these file compression types to the block list: GZ, GZIP, RAR, TAR, TAR.GZ, TGZ, ZIP.

Exclude messages sent to email addresses listed below

Check this box and add any recipient addresses that you wish to exclude from Attachments to Block options. Email address masks are allowed.  Example: *@company.mail, user*@company.mail, admin@*.mail

 

Attachments to Quarantine

Specify file types in this section that you wish to quarantine. When a message has one of these file types attached it will be accepted but then quarantined.

If you list the same file type in both the Block and Quarantine section, messages containing attachments of that type will be blocked, they will not be quarantined.

Add

To add a new file type to the quarantine list, enter it here and click Add.

Remove

To remove a file type from the quarantine list, select the file from the list and click Remove. You can select multiple files by pressing CTRL while selecting them.

Suggestions

These links provide a quick way to add common file types to the quarantine list. Simply click a link and those types of files will be added.

Quarantine executable files:

This link adds APP, CMD, COM, DMG, EXE, HTA, PIF, SCR, and VBS to the quarantine list.

Quarantine image files:

Clicking this link adds the following image file types to the quarantine list: BMP, GIF, JPG, PNG, TIF, TIFF.

Quarantine movie files:

Click this link to quarantine these movie file types: 3GP, ASX, AVI, DIVX, M4U, MOV, MP4, MPEG, MPG, QT, RM, RTS, SWF, WM, WMV.

Quarantine audio files:

This link quarantines the following audio file types: AAC, AIF, AIFF, AU, CDR, M3U, M4A, MID, MIDI, MOD, MP3, OGG, RA, WAV, WAVE.

Quarantine compressed files:

This link adds these file compression types to the quarantine list: GZ, GZIP, RAR, TAR, TAR.GZ, TGZ, ZIP.

Exclude messages sent to email addresses listed below

Check this box and add any recipient addresses that you wish to exclude from the Attachments to Quarantine options. Email address masks are allowed. Example: *@company.mail, user*@company.mail, admin@*.mail

Exceptions - Domains

If you select a specific domain in the "For Domain:" drop-down list box at the top of the page when configuring these settings, that domain will be listed here after saving the settings. Click the View/Edit link for the corresponding domain to review or edit its Attachment Filtering settings, or click Reset to reset the domain's settings to the default Global values.