CentOS - Mar 2005 - Mailscanner and Postfix

I have just followed Johnny Hughes' excellent walk-through on how to install
Postfix, MailScanner with ClamAV and Spamassassin and it seems to be running
fine during in house testing, but I want to make sure that it behaves itself
when it goes live serving about 250 users; I have read comments elsewhere
both for and against the use of Mailscanner with Postfix, and when I
mentioned the subject on the Postfix group I was informed I *WILL* have mail
dupes and missing mail so can I have some observations from people using
this setup with Centos (3.3).

Also, is there a good follow up to JH's article about using that
configuration with virtual mailboxes or is it easy to take the setup as
outlined and 'convert' it to use them? I'm on a steep learning curve
as I
pull myself away from the M$ camp!

Thanks

Nigel Kendrick wrote:
> I have just followed Johnny Hughes' excellent walk-through on how to
> install Postfix, MailScanner with ClamAV and Spamassassin and it
> seems to be running fine during in house testing, but I want to make
> sure that it behaves itself when it goes live serving about 250
> users; I have read comments elsewhere both for and against the use of
> Mailscanner with Postfix, and when I mentioned the subject on the
> Postfix group I was informed I *WILL* have mail dupes and missing
> mail so can I have some observations from people using this setup
> with Centos (3.3). 
> 
You really should add another antivirus vendor as its one of the advantages
of MailScanner, you can add bitdefender, it's freeware.

Sorry, I can not comment on Postfix as I use sendmail with MailScanner but
from what I read on the MailScanner mailing list there are lots of people
running a huge amount of mail through it with Postfix.

Dean.

On Wed, 2005-03-30 at 11:10 +0100, Nigel Kendrick wrote:
> I have just followed Johnny Hughes' excellent walk-through on how to
install
> Postfix, MailScanner with ClamAV and Spamassassin and it seems to be
running
> fine during in house testing, but I want to make sure that it behaves
itself
> when it goes live serving about 250 users; I have read comments elsewhere
> both for and against the use of Mailscanner with Postfix, and when I
> mentioned the subject on the Postfix group I was informed I *WILL* have
mail
> dupes and missing mail so can I have some observations from people using
> this setup with Centos (3.3).
I use this method, and have no problems on CentOS-3.4 and CentOS-4.0 on
several installs.

But, there is a new way to setup PostFix that doesn't require 2
instances of it running.

http://www.sng.ecs.soton.ac.uk/mailscanner/install/postfix.shtml

I have not yet done the installation using that method, but I will try
to do so soon and if it works correctly, update the howto.

> Also, is there a good follow up to JH's article about using that
> configuration with virtual mailboxes or is it easy to take the setup as
> outlined and 'convert' it to use them? I'm on a steep learning
curve as I
> pull myself away from the M$ camp!
This does basic virtual mailboxes

http://www.postfix.org/VIRTUAL_README.html#virtual_mailbox


I would like to do this via a form and to a MYSQL database ... if I have
time:
http://www.postfix.org/MYSQL_README.html

(but the version of postfix produced by RHEL {and thus CentOS} does not
have MySQL support ... so the postfix package would have to be re-done
as a contrib package)

I want to do this to my main server ... but I am not sure when I will
have time to install and test it.
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Peter Farrow wrote:
> Dean,
> 
> do you have any details on mailscanner with sendmail,
Sendmail/ClamAV is covered in nearly all the docs for MailScanner.

http://www.sng.ecs.soton.ac.uk/mailscanner/docs.html
http://www.fsl.com/support/
http://www.fsl.com/support/MailScanner-Manual-Version-1.0.1.pdf
> 
> I am currently using Mimedefang, sendmail and clamav, as an mid stream
> relay to filter viruses and spam, can mailscanner do this?
Yes, we use it for exactly that. It really does work well, removing nearly
all spam and virus scanning with multiple virus engines.

Dean