Help with Spam Reduction

[mattfarley]

We run our own mail server and are seeing a lot of spam mail. We tried turning on the Realtime Blackhole List blocks, the Open Relay Database blocks, etc:

http://www.mail-abuse.org

http://www.ordb.org

But those seem to block a lot of legitimate email. Do any sysadmins have any tips to successfully filtering junk mail? We are using Kerio Mailserver 5.5,

http://www.kerio.com.

Thanks!
Matt Farley
mfarley@sac-yolomvcd.com

 

[CliveC]

Since most span does not have a valid return address (ie no @ in the from would it be possible to block those? Clive

http://tubularity.com

 

[jmatt]

http://www.poppeeper.com/

POP Peeper is a utility that runs in your Windows task bar and alerts you when you have new
email on any of your POP3, Hotmail, MSN or Yahoo accounts. You can also use POP Peeper to read
and delete your email. POP Peeper supports HTML email, so you can see your email the same way
as you would in your email client.

Completely Free: No Ads. No Registration. No Fees.
Easy Setup
Compatible with the following Server Types: POP3, Hotmail\MSN, Yahoo
Read and delete email without opening your email client
HTML Email Support
Save or Open File attachments
No account limit -- notifies you of an unlimited number of accounts
Be notified of new email with visual and\or audible indicators

 

[SteelBurner]

Hi mattfarley,

we'r running Mercury/32 on many of our customer sites and have almost no SPAM going trough since v3.32. It uses a powerful content control management system for handling unwanted mail and a "Compliance" page for the SMTP server that allows you to reject certain types of mail before they even make it into your queue (some words taken from the description...).

ORDB and RBL (and others) are supported but we don't use them as legitimate email is blocked sometimes.

So if you are looking for a good and free POP3/IMAP/SMTP server I recommend Mercury by David Harris that can be found at

http://www.pmail.com/overviews/ovw_mercury.htm

There is also a forum on this server.

SteelBurner