Google Message Security for Google Apps Administration Guide - Manual (Page 178)

178 Message Security for Google Apps Administration Guide
You enable spam filtering and adjust how aggressively you want to filter under
Spam Filtering on a user’s Overview page. Doing this for a Default User applies
these settings to all new users in any org the Default User is assigned to. Doing
this for any other user applies the settings only to that user. You can set an overall
level of aggressiveness for filtering all types of spam (Bulk Email), then adjust
separate filters for more aggressive filtering of specific spam categories.
Note: Messages from approved senders or messages that contain approved
content bypass all spam filtering.
To enable and adjust user-level spam filters:
1. Open a user’s Spam Filters page.
2. Set Filter Status to On.
This enables both Blatant Spam Blocking (if it’s also enabled for the org), and
the category filters. If this setting is Off, no spam filtering occurs.
3. Under Filter Sensitivity, set the Bulk Email and individual category filters.
• Adjust the Bulk Email filter for how aggressively to filter spam that gets by
Blatant Spam Blocking. Bulk email sets a base level for filtering all types
of spam, including spam in the individual categories.
• Optionally set filter levels for more aggressive filtering of individual spam
categories, which include Sexually Explicit, Get Rich Quick, Special
Offers, and Racially Insensitive. When the individual category filters are
on, they multiply the Bulk Email spam level and increase the number of
messages that get identified as spam.
Important: Recommend Settings:
In order to achieve the most effective spam filtering—capturing the most
spam, while minimizing the quarantining of valid messages (referred to as a
“false positive’")—we recommend the following settings for your Spam Filters:
• Bulk Filter: Set to 2
• Category Filters (such as “Special Offer” filter): Set to Off
If you receive primarily non-English messages, we recommend:
• Bulk Filter: Set to 1
• Category Filters (such as “Special Offer” filter): Set to Off
User may adjust their filter values higher for more stringent filtering, but
should be aware that some valid messages might be captured, and should
therefore check their quarantines frequently. For more tips on settings, see
“Fine-Tune Spam Filters” on page 179.
4. Click Save when you have finished.