Solved

Sendmail Spam application?

Posted on 2004-03-30
3
410 Views
Last Modified: 2010-04-20
Hi.. I need basically to install something like mimesweeper onto a linux sendmail installation
that can sweep for spam as it enters the server before it gets to the pop3 stage.

Any ideas please?

(and no, it's not for a large amount of users, say 100 max, so sendmail's mailstream antispam solution starting
at 4,995 pounds will not do.. :)

Thanks very much

Daryn
0
Comment
Question by:daryn
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 9

Accepted Solution

by:
Alf666 earned 180 total points
ID: 10715528
I suggest SpamAssassin (http://www.spamassassin.org)

It's the best out there, and, yes, it's free :-)

There's an extensive doc on installing it on different MTAs (including sendmail) :

http://wiki.apache.org/spamassassin/IntegratedInMta

0
 
LVL 17

Expert Comment

by:owensleftfoot
ID: 10718813
Spamassasin is the most popular as Alf has mentioned. You could also use mailscanner http://www.sng.ecs.soton.ac.uk/mailscanner/ which is a gpl virus scanning system for mail. You can use f-prot (free for personal use) http://www.f-prot.com/download/getfplinfree.html as the virus scanner to use with mailscanner. Mailscanner does its own spam checks but can also be configured to use spamassasin as well.
0
 
LVL 2

Assisted Solution

by:coatesg
coatesg earned 70 total points
ID: 10730526
Agreed with alf666 - personally I'd use the method of piping all incoming mail through spamassassin using a global procmailrc file before the mail is deposited into the users' inboxes.

The lines you would need in /etc/procmailrc are as follows:

:0fw
#Folowing line for only mail messages < 256kb
* < 256000
| /usr/bin/spamc -f

(using the spamd daemon based version of procmail rather than the standalone app - probably recommended for 100 users)

Remember that spamassassin marks the mail as SPAM (adds headers and changes the message if it is over the global spam threshold) - your users may want to control their filtering within their own mail client or .procmailrc by filering for the expression in the headers:

 X-Spam-Level: *****

(with the appropriate number of *'s - less is stricter)

Recent versions can also "learn" on a per user basis using Bayesian filtering, but it requires each user to have shell access (or a cron script to scan the spam and ham folders) and so is a bit more messy.
0

Featured Post

U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
I. Introduction There's an interesting discussion going on now in an Experts Exchange Group — Attachments with no extension (http://www.experts-exchange.com/discussions/210281/Attachments-with-no-extension.html). This reminded me of questions tha…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
Suggested Courses

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question