On 01/31/2012 11:04 PM, Chris Joslyn wrote:
You know the story. Boy sets up webserver. Boy helps nonprofit.
Nonprofit wants boy to set up a mail server. It finishes somewhere with
boy spending too much of his free time trying to read and remember how
to do all this properly.
So.
I seek wisdom.
Facts:
Ubuntu 11.10
Reverse DNS set up.
Hostname set up.
Postfix set up.
I can send an email from the server from a command line email client.
Good so far.
Now I decide on server software. What say you? Dovecot
<http://dovecot.org/>? Courier <http://www.courier-mta.org/>? Hormel
herring <http://en.wiktionary.org/wiki/mislead>? Something else?
I went with Dovecot, after 2 hours of getting no where with Courier.
Dovecot was much more straight forward on my Ubuntu Linode (which is
still 10.04, but I don't think a lot will have changed).
The linode guides are always quite good, so I'd start there for the
parts you haven't done yet (and double check the ones you have) -
http://library.linode.com/email/postfix
I also saw this fly by the other day, which I was going to read through
to see if there was anything else in postfix I needed to look out for -
http://flurdy.com/docs/postfix/index.html
I have found that mail servers require slightly more baby sitting
because of the spam problem. You'll tighten up rules the way you think
you are supposed to, then find some pseudo legit mail getting dropped
(like christmas wish list from a clothing company that your wife likes).
I would also recommend that when you integrate spamassassin (assuming
that's coming) to do it at the milter level, which lets spamassassin
reject mail before delivery. There is a spamass-milter package in Ubuntu
that does most of this for you.
Postgrey, install it and mail sure it's running. That gets rid of 80% of
my inbound mail as being invalid, which it is.
-Sean
--
Sean Dague Learn about the Universe with the
sean at dague dot net Mid-Hudson Astronomical Association
http://dague.net http://midhudsonastro.org
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