Email Protection Administrator Guide
Define an Attachment Filter
November 2012
Proprietary: Not for use or disclosure outside McAfee without written permission
67
5
From the
Message contains high-risk attachment
drop-down menu, select one of the
following options:
•
Allow delivery
– Email Protection sends the email to the recipient with no
filtering or notification.
•
Quarantine the message
– Email Protection sends the email to quarantine.
•
Deny delivery
– Email Protection denies delivery of the email.
This action applies if an email has an attachment that is a zipped file and that violates
any of the following rules:
•
The zip file itself is too large ( > 500MB).
•
A file contained in the zip file is too large ( > 100MB).
•
The zip file contains too many files ( > 1500 files).
•
The compression rate is too high ( > 95% compressed).
•
The zip file contains too many levels of nesting ( > 3 levels).
6
From the
Message contains an encrypted zip attachment
drop-down menu, select
one of the following options:
•
Allow delivery
– Email Protection sends the email to the recipient with no
filtering or notification.
•
Quarantine the message
– Email Protection sends the email to quarantine.
•
Deny delivery
– Email Protection denies delivery of the email.
The action applies if an email message has an attachment that is a zipped file and is
encrypted and password-protected. This format is commonly used to prevent scanning
for viruses in zipped files.
7
From the
File in zip attachment violates attachment policy
drop-down menu, select
one of the following options.
•
Attachment policy action
– The action for the specific policy that was violated
will be performed on the entire attachment. If multiple policies were violated, the
policies defined in the
Attachment – Filename Policies
subtab override the
policies defined in this subtab.
•
Do nothing
– The email is sent to the recipient with no filtering applied.
The action applies if an email that has an attachment that is a zipped file and the
zipped file contains files that violate the previously-defined filters for attachments.
Notify Users about Attachment Violations
You can direct Email Protection to send notification emails to the recipient and/or sender
when an email is filtered because it contained an attachment violation. You can see the
content of notifications and change it in the
Notifications
tabs. See
Define the Format and
Text of Notifications to Users
.
1
Click
Email Protection | Policies
.
2
Select the policy you want to change.
3
Click
Attachments
.
4
Click
Notifications
.