Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Plesk has spam filtering features using SpamAssassin you can buy. But I was wondering, what if I just install Mailscanner? I mean, MailScanner installs itself in the postfix/exim/qmail pipeline and just lets the MTA deliver it normally.

But because Plesk does it's own voodoo inside my Ubuntu install, I'm not sure if this would work. I mean, will it conflict with settings Plesk does to the mail system?

share|improve this question

closed as off-topic by HopelessN00b Jan 14 '15 at 5:36

  • This question does not appear to be about server, networking, or related infrastructure administration within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

I learned that mailscanner doesn't even support qmail... – Halfgaar Apr 14 '11 at 9:23
This question appears to be off-topic because it is about working with a service provider's management interface, such as cPanel. – HopelessN00b Jan 14 '15 at 5:36
I don't think it is off topic. It's not about a service provider's panel, it's about installing a panel on my own server. – Halfgaar Jan 14 '15 at 10:05
up vote 1 down vote accepted

I won't install something like Mailscanner on a system that is management by an external tool like Plesk. Both Mailscanner and Plesk change a lot of things and expect certain conditions.

Mailscanner brings a lot of packages and is not that easy to set up, btw. You really have to know what you're doing. If you're using the Ubuntu package, it's a little bit after the current Mailscanner stable release - but if you install from source, you won't get that warm and comforting feeling of your Plesk setup (Install it on another machine and you'll know what I mean).

Maybe you're better of if you add some simple restrictions to your smtpd_recipient_restrictions line ( of postfix, if you use it). See the Spamhaus ZEN blocklist and a Greylisting server - these can be added really fast without breaking anything and stop a huge amount of spam.

share|improve this answer
I already enabled Zen, but I don't really know how effective it is. The Plesk machine is question is not yet used for our customers (it will soon though). Greylisting is not an option; I don't want to include delays, which can be annoying for forum registration mails etc. – Halfgaar Apr 14 '11 at 9:28
The delay for greylisting will just be for the first individual hit. It remembers the accepted to-from-combinations; and you can whitelist. To see how effective Zen is, do something like grep NOQUEUE /var/log/mail| grep -i spamhaus| wc -l – initall Apr 14 '11 at 9:59

Not the answer you're looking for? Browse other questions tagged or ask your own question.