Use this feature to immediately reject all email addressed to addresses at your domain that are invalid.

This feature will allow us to only accept email for valid email addresses and instantly notify spammers via an SMTP reject about invalid recipients. Using this feature allows us to offer some directory harvesting protection via tarpitting. Using this feature greatly reduces the load on our filter servers, because we don't have to perform content filtering on the message. It also reduces load on your server by letting us reject messages to invalid recipients on our end, even if they don't trigger a spam filter. Up to 80% of spam for some domains is sent to email addresses that aren't valid.

1. Click on the "Edit" link next to "Mailboxes".
2. Add your email addresses one at a time using the "Add Mailbox" text box and "Add" button.

   Optionally, you can add multiple email names (one per line) using the form reached through the "Add New Mailboxes" link.

   Make sure you add both email account names and any email alias names that you may have.

3. When you're done adding names, select the "Only accept mail for the mailboxes listed below." item from the "Mailbox List" radio selection.
4. Select the "Spam filtering ON by default for all mailboxes" item from the "Spam Filtering" radio selection.
5. Finally, click on the "Set" button to save the changes.

Wait 10-15 minutes for the database to update, and watch the majority of the spam messages disappear right at the source, as the spammers start getting reject messages in their email software (5.7.1 User unknown).

Use this feature to turn off filtering for an email address (bypass).

Note: Disabling spam filtering does not disable virus filtering for that email address.

1. Click on the "Edit" link next to "Mailboxes".
2. Click on the "Add New Mailboxes" link.
3. Note your default Spam Filtering policy.
4. Add one mailbox per line, followed by a semicolon (;) and then either 0, 1, or 2, depending upon what your default setting Spam Filtering policy is. 0 = default 1 = filtering on 2 = filtering off

   For example, if your default policy is "Spam filtering ON by default for all mailboxes", then to disable filtering for the john@yourdomain.com and jane@yourdomain.com "bypass" email addresses you would enter:

   john;2 jane;2
5. Click on the "Add" button to add the entries.