On Fri, 2007-10-05 at 08:50 -0700, Darrin Chandler wrote:
> On Fri, Oct 05, 2007 at 08:36:55AM -0700, Mark Phillips wrote:
> > 1. How difficult is it to maintain am email server? 
> > A couple of articles/forums recommend using a third party for email
> > since keeping an email server secure is hard and a takes lots of time.
> > Keeping on top of all the types of attacks and exploits people come up
> > with, and then install patches to prevent them from taking over your
> > server and using it for nefarious activities is a full time job. Is this
> > true?
> 
> For your needs it is NOT a full time job. If you spend some time picking
> the tools you'll use and then check the history of the distro to see how
> well they maintain those packages you'll probably see that keeping up to
> date is not too hard.
> 
> > 2. What combinations of MTA, MDA, MUA's do people use?
> > I have run across several articles that combine Postfix, Courier or
> > Dovecot, and SquirrelMail or Qmail, MySQL, ClamAV, and SpamAssassin.
> > Which is better (i.e. easier to install & maintain) Courier or Dovecot?
> > What other combinations are better? How much time does it take to keep
> > all these pieces secure?
> 
> You're opening a can of worms. There are people using all manner of
> software in various combinations. Some will tell you horror stories
> about whatever they're not using. And the worst part is it's all true
> and everyone is right.
> 
> That being said, I believe dovecot is easier out of the box than
> courier.
> 
> > 3. How much hardware do I need?
> > I plan on using the funambol server for syncing the blackberry, and that
> > requires a P4, 1.8 GHz, 200 MB disk space, and 512 MB of RAM. How much
> > more do I need for email? Could my email server fit on the same machine
> > or a separate machine? The funambol server is a J2EE application (tomcat
> > & mysql) (http://www.funambol.com/).
> 
> For a few users your hardware needs will be quite modest. That depends a
> lot on what all you put in the chain. SpamAssassin + ClamAV + whatever
> will use a lot more resources. If you can use greylisting then that will
> block most of the spam up front and allow you to use a heavier email
> stack on the back end.
> 
> General advice: running a small email server is not a full time job and
> is entirely practical. But it's not a decision to be taken lightly. It
> will involve a fair amount of time to learn your way around, get all the
> pieces working together, make sure you're not allowing relaying, etc.,
> etc. After you get everything working you really, really need to keep up
> to date with patches. Keeping up to date is not hard, and not time
> consuming, but it must be done.

How does one do this? I am familiar with apt-get update and apt-get
upgrade, but beyond that I am not sure what to do. 

>  IOW, this is a small committment, but it
> IS a committment.
> 

Do you have any book recommendations?

Thanks for your advice!

Mark
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