[TriLUG] sendmail and roadrunner

[Jon Carnes]

It's using the "From" so you can change your email client to modify the From
to a "valid" address: greg at nc.rr.com

If domain is being tacked on by your sendmail install, then you can use the
Masquerade option of sendmail so that it sends out local mail using another
hosts name (like nc.rr.com instead of paloverde.nc.rr.com).

Jon
----- Original Message -----
From: "Greg Brown" <gregbrown at mindspring.com>
To: <trilug at trilug.org>
Sent: Tuesday, February 26, 2002 8:50 AM
Subject: [TriLUG] sendmail and roadrunner


> Is anyone out there using their primary roadrunner machine (i.e. the one
with
> the "live" IP address) as a mail relay host?  Most domains accept my mail
> just fine but others (xo.com, aol.com most noteably) reject my mail
returning
> some version of the following error:
>
> ... while talking to triton.xo.com.:
> >>> MAIL From:<greg at paloverde.nc.rr.com> SIZE=866
> <<< 501 5.1.8 <greg at paloverde.nc.rr.com>... Sender domain must exist
>
> I imagine this is due to roadrunner not adding my host name, paloverde, to
> DNS when it assigns the IP address.  So, the question becomes is there any
> way to fix this so I can mail my partents at their AOL address using my
> machine (paloverde) as a mail router?  And, just in case anyone is
worried, I
> am an avid anti-spammer and I'm not trying to use my machine to spam.
>
> I am running RH 7.1 and I checked the /etc/mail/sendmail.mc file but I
can't
> see anywhere in the file where I can fix this problem.
>
> Any help would be greatly appreciated.
>
> Thanks!
>
> Greg
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