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n00b: mailserver & mx records

Hi,

I am trying to set up a little mail server (maily for the fun and experience of it) at home (behind a NAT server, a linksys wlan access point and router...). I have dsl and a dynamic IP.

To the outside, i do not have names like server.example.com -- it always looks like example.com.

1) How would i have to configure the MX records in order to get mail anywhere close to my mail server?
2) What ports do i need exactly?
3) Are there any special setting for postfix that i have to pay attention to?

Thank you soooo much!
wwnexc

Quote:

I am trying to set up a little mail server (maily for the fun and experience of it) at home (behind a NAT server, a linksys wlan access point and router...). I have dsl and a dynamic IP.

To the outside, i do not have names like server.example.com -- it always looks like example.com.

I'm confused by this. Your dynamic IP resolves to some-funky-hostname.abbrev.isp.com. Are you saying you set up some DNS records for your domain already?

Quote:

1) How would i have to configure the MX records in order to get mail anywhere close to my mail server?

You need to have a dynamic dns service, such as http://www.no-ip.com/ http://www.dyndns.com http://www.zoneedit.com/

Quote:

2) What ports do i need exactly?

Forward port 25, that's SMTP.

Quote:

3) Are there any special setting for postfix that i have to pay attention to?

The postfix man pages and comments in the config files will take you a long way for the settings on your machine. Read those and ask more specific questions.