1. What
are pre-filters?
Scora is able to recognize
incoming spam at the server level as
they come in and can reject the m before they arrive
in your inbox to save you the trouble
of having to delete them. Messages sent from known spam sources are rejected
(based on various subscribed block lists). Messages sent from return
addresses with non-existent domains will also be rejected. The default block
lists that are used are usually very accurate and are based on Internet-wide
feedback from email administrators (among other methods). This makes it
extremely rare for legitimate email to be sent from a source listed on a
block list.
NOTE: This category was initially labeled as 'Block'.
2. What
does the number on the pre-filtered line mean?
This number represents
how many messages were caught and rejected
by Scora's pre-filters. Typically a sender who happens to
be blocked by the pre-filters
will receive an error message bounced back to them indicating why their
message was not delivered.
3. Can I
view or recover any rejected messages?
Messages rejected by
the pre-filters are not recoverable as
they get rejected prior to quarantine. By default, the pre-filters
are set at a
conservative level such that it has a very low chance of rejecting
legitimate emails but still blocks spam from clogging your inbox. The
default block lists that are used are usually very accurate and are based on
Internet-wide feedback from email administrators (among other methods). This
makes it extremely rare for legitimate email to be sent from a source
listed on a block list.
4. Can I
adjust the pre-filters or disable them?
Pre-filter settings
are globally applied to all addresses in
a domain
(including exempt users). Customized pre-filter settings for individual
accounts is currently not supported. For more information on the current
pre-filter settings, please contact your domain's Scora administrator.
5. What
specific block lists are referenced by the pre-filters?
The defaults
are as follows:
*IP checked vs MAPS RBL+ (rbl-plus.mail-abuse.org)
*IP checked
vs DSBL proxy list (list.dsbl.org)
*IP checked vs ORDB open
relay list (relays.ordb.org)
*IP checked vs Spamhaus list (sbl.spamhaus.org)
NOTE: Sender
address domain must be valid and exist as well
For more information on the
current pre-filter settings, please contact your domain's
Scora administrator.
