[Fwd: [imp] Can't send messages though sendmail]

[EdwardSPL at ita.org.mo]

Eric Rostetter wrote:

> Quoting EdwardSPL@ita.org.mo:
>
>    ----- Transcript of session follows -----
> 550 5.1.2 [edward@123.com]... Host unknown (Name server: 123.com]: host not found)
>
> Try the same command without the [ ] characters.  If it still fails, then
> it is a DNS/hostname problem, meaning either you didn't configure your
> /etc/resolv.conf, and/or you need to add 123.com to your /etc/hosts file.

After run "echo test|mail edward@123.com"

Subject:
   Date:  Thu, 5 Dec 2002 00:44:03 +0800
   From:  Edward Leong <edward@host1.123.com>
     To: edward@123.com
test

It is okay ( no problem ), but I can't use edward@123.com send email to edward@123.com
though IMP 3.1....
And I can use edward@123.com send email to edward@hotmail though IMP 3.1
So, can you help me more ?

Thanks !

Edward.