Block .txt file using attachment rule in InterScan Messaging Security Virtual Appliance (IMSVA)

- Updated:
- 30 Dec 2019
- Product/Version:
- InterScan Messaging Security Virtual Appliance 9.0
- InterScan Messaging Security Virtual Appliance 9.1
- Platform:
- CentOS 6 32-bit
- CentOS 6 64-bit

Summary

Learn how to block .txt file using attachment rule. The TXT file extension is not included in the default list of file extensions, and cannot be added under attachment name or extension, as attachment names require a full filename.

Details

Create a new attachment type rule, or modify an existing one.

Edit "And scanning conditions match", and choose among these options:
- Enable/check then click "Name or extension".
  1. Enable/check "Attachments named".
  2. Add *.txt
  3. Click Save.
- Enable/check then click "MIME content type".
  1. Enable/check "Other MIME content type (Use a semicolon (;) to separate the value)".
  2. Add text/plain for content type:
  3. Click Save.
Click Save.