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Old 01-09-2009, 10:56 PM   #1
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Postfix setup help - smoothwall fedora postfix godaddy

Hi folks I'm looking for some help, well to be honest probably some hand holding. I'm trying to get a home based web server and mail server up and running. The web server seems to be working fine, that is I can access the simple test page I created via my domain name. My real stumbling point is with Postfix. Just not sure of the next steps.

Here is my environment. I have Smoothwall running on a red-green network with a couple of Fedora 10 desktops and a Fedora 10 server(web and mail) on the green network. (Yes I know I should put the server in the DMZ, but please lets look past that for the time being.) I have a domain registered with godaddy, call it "" and also and email address with the domain, call it "". My server has a hostname of ""

I want to be able to utilize smtp, TLS and POP3 to send and received email with Thunderbird through the Postfix server for various new mail accounts, call them "" and "" as well as ""

What are my next steps to configure Postfix to process email for "" "" "" and use Dovecot, spamassassin, and clamav? Please, I'm really looking for some step-by-step help here, not just "go read the documentation". I've done that along with various tutorials and they have left me looking crossed-eyed.
Old 01-10-2009, 12:02 AM   #2
Registered: Aug 2004
Location: Bear, DE, USA
Distribution: Slackware 11, CentOS 5.2, Ubuntu
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I've got a tutorial on setting up PostFix and Dovecot. Check it out, you may find it useful as a starting point.

Also see the Dovecot Wiki for some good examples.

See the Spammassassin Wiki for examples of integrating SA with PostFix,

Nathanial Coffield, Support Engineer,,

Last edited by nathacof; 01-10-2009 at 12:12 AM.
Old 01-10-2009, 12:06 AM   #3
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Registered: Mar 2006
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Two things you need for a start - the WAN needs to be able to access port 25 (if destination port 25 OK from outside), and you need an MX record on your nameserver(s) pointing to your server (similar to the A record you must have if your http is working).

What do you mean you have an email address set up? postfix by default will accept mail for valid Linux users, so if you have a user mark, it should receive mail for

Edit /etc/postfix/ to set mydomain to, myhostname to (these may not need to be set, since postfix will try and pick them up), and make sure mydestination includes (again, this will probably be OK).

Make sure you start postfix (service postfix start) and starts on boot (chkconfig poastfix on).

Send yourself an email (try from the server first using:

mail -s test mark
type message, followed by control D
Make sure it gets delivered (use "tail /var/log/maillog")

Assuming that works, you need a pop/imap server. I'd suggest dovecot, and a simple "yum install dovecot" will sort that. It should work out of the box. Start it and make sure it starts on boot (see above).

You should now be be able to connect a mail client from a desktop and check mail (make sure ports 110 and 143 are open for pop/imap).

Now try sending a message from the WAN to yourself.

See how you go and come back with further questions.


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