[ale] [OT] Sendmail (?) woes

[Joe]

"Greg" <runman at speedfactory.net> writes:

> well, the original question of your post - 
> 
> > > Why does my delivery agent say "From:<joe at orado.localdomain.private>"
> > > when I'm explicitly setting the From: line to "jknapka at earthlink.net",
> > > (below)? Is this a sendmail.cf thing (shudder)?

I'm really confused. Or, more likely, not making myself clear.
Earthlink has nothing to do with this problem except that I prefer to
receive mail at my Earthlink mailbox, and therefore I set my From:
address to "jknapka at earthlink.net" in my mail client.  I'm not going
through Earthlink's SMTPs server; my local sendmail is trying to talk
directly to "mx3.sun.com" and making a hash of it. It seems my
sendmail daemon is identifying itself to mx3.sun.com as
"orado.localdomain.private" in the From: line of the outgoing mail,
which would be right and proper, as that is its hostname.

*However*, I thought that the "From:" line should always be the From:
line in the mail headers; transport agents aren't (IIRC) supposed to
touch a From: line, only add one if there's none. Furthermore, I have
recently explicitly instructed my sendmail to "masquerade" as
"kneuro.net" (an unrelated domain I own), yet *still* it tells
mx3.sun.com that it's "orado.localdomain.private".  I am apparently
missing something important.

> I think that djb goes into some of this stuff on his website, too.

Who is djb?

Thanks,

-- Joe
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