Google Message Security Troubleshooting Guide - Manual (Page 9)

10 Message Security Troubleshooting Guide
Where is the “Add Email Config” link in my organization
list?
The ‘Add Email Config’ links are only next to Account organizations. In a typical
organization hierarchy, email configs are sub-organizations of your Account
organization.
Approved/Blocked Senders Lists
Who should I add to my Approved and Blocked Senders
lists?
Since adding an approved sender effectively allows traffic through filters, you
should be cautious when deciding which addresses and domains to add to your
Approved Senders list. Spammers can easily send emails which falsify the sender
address to take advantage of any such configuration. For more information, see
Deciding Which Approved Senders to Add.
Note: Do not add your own domain to your Approved Senders list. With this
configuration, all messages sent to your address or domain will be allowed
through the filters regardless of the message’s spam-like nature. It is too easy for
spammers to spoof.
Is there a limit on how many users I can add to my Approved
and Blocked Senders lists?
The maximum number of characters is 4,000 characters for each list (organization
approved senders, organization blocked senders, user approved senders, user
blocked senders). If each address or domain is roughly 30 to 40 characters, each
approved/blocked sender list can include approximately 100 to 130 addresses
and domains.
The maximum number of characters allowed for the approved mailing lists, which
is available only through the Message Center, is 1,000 characters.