Dear Stan, I doubt it is absolutely necessary to pay for that service. Please refer
http://www.linuxforums.org/forum/servers/6797-email-server-setup.html Regards, Basanta On Sun, Jun 27, 2010 at 3:35 PM, Stan Hoeppner <s...@hardwarefreak.com> wrote: > Basanta shrestha put forth on 6/27/2010 3:53 AM: >> Dear All, >> >> CentOS 5.2 >> >> Followed http://wiki.centos.org/HowTos/postfix and installed >> postfix dovecot system-switch-mail system-switch-mail-gnome >> >> Local delivery and local receipt works ok. Couldn't send email to >> external mail using 127.0.0.1 as smtp server. >> >> Now trying to make my computer a full fledged mail server. I am behind ADSL >> NAT > > This should get your outbound working: > http://www.hardwarefreak.com/postfix-adsl-relay-config.txt > > You may have to install libsasl if it's not already installed. > > > This is why inbound mail to your domain isn't going to your server: > > homelinux.org. 86400 IN MX 20 mx2.mailhop.org. > homelinux.org. 86400 IN MX 10 mx1.mailhop.org. > > You don't own or control the domain "homelinux.org". Ownership/control is > required to route mail for a given domain to an MX. The only way to get > _your_ mail for your _subdomain_ lal.homelinux.org to your Postfix server > lal.homelinux.org is to setup an arrangement with homelinux.org (a.k.a. > dyndns.org) to forward your mail to your server. This is where "free" dynamic > dns services make the money that keeps them in business: add-on services: > http://www.dyndns.com/services/mailhop/relay.html > > $49.95/yr USD for their mail forwarding service that does what you need, but > with their domain name, not yours. > > Pay someone like TZO ~$60 USD/yr for top notch dynamic DNS service, and pay a > registrar between $5-$15/yr for a domain name of _your_ choosing, and this all > becomes a whole lot more direct, and a lot easier for you to control and > configure. That's about 20 cents per day combined cost--less than a cup of > coffee per day. Is running your own mail server behind an adsl consumer > connection worth 201 cents a day to you? If so, this is by far the best way > to do it. > > It's how I've been doing it with TZO since 2005, though I've had static IP > service for over a year. I stick with TZO just in case I move and can't get > static IP service. I've had zero problems with TZO in 5 years, 100% uptime > AFAICT. http://www.tzo.com > > Many routers fully support TZO just as they do DynDNS.org: > http://www.tzo.com/MainPageSupport/TZO_Included.htm > > -- > Stan >