Deleting Disabled SMTP Filter Attachment Rule Leaves Corrupted Rule

If you disable and then later remove (or delete) an SMTP Filter Attachment rule, it may not be removed from the tool. Instead, it may become corrupted. When this occurs, you cannot edit or remove the rule, and an entry that appears as a "disabled" icon appears, but the text title and description fields for the rule are blank.

You can configure SMTP Filter Attachment rules by following these steps:

1. Start the ISA Management console.
2. Click the server or array name, click Extensions, and then click Application Filters.
3. Right-click SMTP Filter, and then click Properties.
4. Click the Attachments tab.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. The English version of this fix should have the following file attributes or later:



NOTE: This hotfix only prevents future corruption in the Attachment rules area.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.