[Mailman-Users] FW: Host not found

Dwight Tovey dwight at dtovey.net
Tue Oct 25 15:20:53 CEST 2005

Daniel Cuschieri said:
> Hi guys!
> My friend has a home server and I use web / mail server services from him.
> He also uses mailman to provide mailing lists.
> He created some mailing lists and they work fine for him.  I purchased 2
> domains, and he created about 10 mailing lists for me.
> The problem is that when I try to send an email on the mailing list, I
> *always* get back the following error:
> The original message was received at Tue, 25 Oct 2005 08:17:13 +0200 from
> [x.x.x.x]
>    ----- The following addresses had permanent fatal errors -----
> <mylistname at mydomain.org>
>    ----- Transcript of session follows ----- 550 5.1.2
> <mylistname at mydomain.org>... Host unknown (Name server:
> mail.mydomain.org.:
> host not found)

This sounds like DNS has not been completely configured for your domains. 
Assuming that you are trying to send a message from your hotmail account
to your list, when you hit 'send', the hotmail server trys to lookup the
address for your domain, but can't find the mail server.

You'll have to go to whoever you registered your domains with and if they
are handling DNS for you make sure that your domain has an MX record.  If
they don't handle DNS directly, then they should have an entry that points
at the server that does handle it (your friend's machine?) and make sure
that you have a proper MX record there.

Hope this helps.
Dwight N. Tovey
email: dwight at dtovey.net
web: http://www.dtovey.net/~dwight
I don't mind going nowhere as long as it's an interesting path.

More information about the Mailman-Users mailing list