Troubleshooting Content Issues
123
Troubleshooting
Content Issues
If the mail has been delivered to the 3Com Email Firewall successfully, it
will undergo security processing before delivery to its final destination.
Many of the security tools used by the 3Com Email Firewall, such as
Anti-Spam, Content Filtering, Anti-Virus scanning, Attachment Control,
and so on, will cause the message to be rejected, discarded, and
quarantined without the message being delivered to the recipient's mail
box.
These tools can often be misconfigured allowing legitimate messages to
be incorrectly rejected or quarantined. If you find that certain mail
messages are being blocked when they should not be, check the
following:
■
Is there a Specific Access Pattern or Pattern Based Message Filter rule
that applies to the message?
■
Is the attachment type filtered via Attachment Control?
■
Are the spam controls blocking the message?
■
Is the message over the maximum size limit?
Email History
Every message that passes through the 3Com Email Firewall generates a
database entry that records information about how it was processed,
filtered, quarantined, and so on. To see how the message was handled by
the 3Com Email Firewall, you can check the
Email History
to see the
disposition of the message. Using this information, you can find out
which security processing is blocking the message and then check the
configuration and rules to ensure that they are set properly.
Select Reporting -> Email History from the menu.
Summary of Contents for 3CR3MFA-92
Page 8: ......
Page 12: ...12 ABOUT THIS GUIDE ...
Page 30: ...30 CHAPTER 2 CONFIGURING MAIL DELIVERY ...
Page 46: ...46 CHAPTER 3 CONFIGURING MAIL SECURITY ...
Page 98: ...98 CHAPTER 6 SYSTEM CONFIGURATION ...
Page 114: ...114 CHAPTER 7 SYSTEM MANAGEMENT ...
Page 144: ...144 APPENDIX C THIRD PARTY COPYRIGHT AND LICENSE AGREEMENTS ...