Why am i suddenly getting all of this spam – Google Message Security Troubleshooting Guide User Manual
Page 46

Frequently Asked Questions 47
Why am I suddenly getting all of this spam?
If your filtering was working fine and then suddenly you get a lot of spam through
the filter with messages containing GOOD RECIP in the message’s X-pstn
header, check your approved sender lists.
•
If the user has added his/her own e-mail address or domain to his/her
approved mailing list configuration, all messages sent to that user or the
user's domain will be allowed through regardless of how spam-like nature of
the message.
The administrator can remove this configuration using the Administration
Console. For more information, see
Mailing Lists for Users.
•
Depending on the User Access configuration, a user can remove this
configuration using Message Center. For more information, see
Approved/Blocked Senders Using Message Center
•
For more detailed spam troubleshooting, see the “Why are these spam
messages not being filtered?” FAQ.
Why do obvious spam messages occasionally get through
the filters?
Spammers commonly forge the sender address from popular domains in attempts
to bypass filtering. These may be approved senders you added, or approved
senders which were pre-populated for your organization. You may wish to modify
the Approved Sender lists for your organizations to remove these approved
senders.
For more detailed spam troubleshooting, see the “Why are these spam messages
not being filtered?” FAQ.
How do I prevent good messages from getting filtered out as
spam? (false positives)
On rare occasions, legitimate messages can be falsely quarantined as spam
(often called false positives). Or conversely, messages might get past the filters
and reach user’s Inboxes.
Some common reasons for false positives include:
•
Filter levels are too aggressive.