Christian T. Steigies dixit:
>I tried to set this in .sbuildrc as (do I need to escape the @?):
>$mailfrom = 'm68k Source Builder <sbu...@garkin.steigies.net>';
>
>which shows up in the email headers wrong:
>From: m68k Source Builder <sbu...@chumley.debian.net>
It’s 99.9% sure that you have a CNAME there somewhere.
And voilà…
tg@blau:~ $ host garkin.steigies.net
garkin.steigies.net CNAME chumley.debian.net
chumley.debian.net CNAME steigies.no-ip.org
steigies.no-ip.org A 188.108.188.170
Heh, all that user support in #sendmail on freenode pays off.
I knew the problem without even trying, on the first time
reading about it.
Basically it boils down to: CNAME breaks internet eMail, period.
If you want to send eMails from one domain, you MUST NOT use a
CNAME RR for that domain or one of its components.
The dyndns case is a bit difficult… see whether you can get by
with not needing an A RR, or whether an RFC1918 A RR works; this
works with eMail if you add an MX RR, like:
garkin.steigies.net MX 10 spool.mail.gandi.net
garkin.steigies.net MX 50 fb.mail.gandi.net
Add that, remove the CNAME, and add…
garkin.steigies.net A 192.168.x.y
… or something like that, if you must, and that works.
This will, of course, break ssh to that hostname from
the outside, but ~/.ssh/config entry…
Host garkin.steigies.net
Hostname steigies.no-ip.org
… will fix t̲h̲a̲t̲.
Good luck,
//mirabilos
--
21:49⎜<allamoox:#sendmail> I have a question guys,
⎜ Can I use my PC as SMTP server, I use Windows 7 .
⎜ Already googled and Installed IIS
⎜ but Still I can't send E-mail
