An instance was found of a particular message by-passing the attachment extension checks in GMS Anti-Spam. The extension was not being spotted because of broken MIME info.
The problem occurred in messages where the continuation line did not begin with white space. This is an incorrect format and in violation of the RFCs. GMS Anti-Spam has now been updated to handle this type of message and attachments are now correctly rejected.
- How can I reject malformed mime messages?
- What is MIME?
- Does GMS Anti-Virus work against malformed MIME and UUEncode files?
- What is contained in release 3088?
Keywords:juce rejectattachmentext attachment extension blocking Spam checker GMS Anti-spam anti spam antispam