SysAdminGear

If you are in trouble with ordb.org and need to remove it from MS-Exchange Server Spam Filter

Search the feature for blacklist support within the global settings of your organization.

1. MS-Exchange System Manager
2. Global Settings
3. Message Delivery Properties
4. Connection Filtering tab
5. Remove relays.ordb.org

If you are in trouble with ORDB.ORG and need to remove it from Postfix Mail Server

- Open the postfix configuration
- Remove the following line:
reject_rbl_client relays.ordb.org,

Restart postfix:
# service postfix restart

I found a good link where you can test a SMTP server the online simple program will check for any configuration trouble and display it. You just need to enter the server address to start the tests. It is util to check if spammers can use your server to spam.

SMTP test

These are some useful Exim commands

--------> REMOVE MAILS BY ID -------->
# /usr/sbin/exim -v -Mrm (MAIL ID HERE)

--------> LIST QUEDED MAILS -------->
# /usr/sbin/exim -bp

--------> OUTPUT NUMBER OF QUEDED MAILS -------->
# /usr/sbin/exim -bpc

--------> DELETE FROZEN MAILS -------->
# /usr/sbin/exim -bp | awk '$6~"frozen" { print $3 }' | xargs exim -Mrm

--------> DELIVER FORCEFULLY EMAILS -------->
# /usr/sbin/exim -qff -v -C /etc/exim.conf &

--------> FREEZE MAILS FROM SENDER -------->
# /usr/sbin/exiqgrep -i -f (MAIL ADDRESS HERE) | xargs exim -Mf

--------> REMOVE MAILS FROM SENDER -------->
# /usr/sbin/exiqgrep -i -f (MAIL ADDRESS HERE) | xargs exim -Mrm

This should activate Spamassassin on all mailboxes:
# /usr/local/psa/admin/bin/mchk --with-spam

To upgrade Spamassassin you can run:
# yum update spamassassin

If SpamAssassin is not working on your cPanel 11 server, you should be able to fix it.

Login as root tou your server using ssh.

Ensure that each module gets carried over to the update Perl version using the "autobundle" CPAN feature:
# perl -MCPAN -e 'autobundle'

You should have the the following output, make a note of this:
'Wrote bundle file /home/.cpan/Bundle/Snapshot_2007_11_11_00.pm'

Update to Perl 5.8.8:
# cd /root
# wget http://layer1.cpanel.net/perl588installer.tar.gz
# tar -zxf perl588installer.tar.gz
# cd perl588installer
# ./install

Restore all the previously installed modules from the CPAN bundle that was created by executing:
# perl -MCPAN -e 'install Bundle::Snapshot_2007_11__00'

All modules required by cPanel 11 should be now installed, check it:
# /usr/local/cpanel/bin/checkperlmodules

Restart cPanel:
# /usr/local/cpanel/startup

It should be fine now

cPanel 11 version includes support for RBL ( RBL is an abbreviation for "Real-time Blackhole List") support what means that you can block a good part of spam without modifing configuration files.

How to enable RBL support:

Login to WHM -> Exim Configuration Editor (here you can enable spamhaus and or spamcop)