For the IMGate project, I follow the postfix users list and there is
currently a thread "Protocol error with Hotmail server"
The answer below to my question reflect the same point that Dusty Carden
made here a couple of months ago.
The conclusion for us Imail admins is that checking "Refuse NUL senders" in
Imail effectively breaks Imail's compliance with RFC and prevents complying
mail servers from bouncing mail back to Imail.
Len
=================
Len Conrad <[EMAIL PROTECTED]> writes:
> Since we all know why mail admins refuse nul senders (spam be out, RFC821
> be damned), is there any way to populate a MAIL FROM: of a postfix
bounce msg?
Doing so would cause mail loops all over the place. Even hotmail at least
generates correct mail bounces with nul senders.
I thought hotmail ran qmail actually so it surprises me that they would be
broken this way. We do see these errors from lots of sites other than hotmail
though:
SMTP error from remote mailer after MAIL FROM:<>: host coolchannel.com
[207.126.106.80]: 553 <>... no address specified
SMTP error from remote mailer after MAIL FROM:<> SIZE=7363: host
digitalexp.com [209.26.2.226]: 501 bogus mail from
SMTP error from remote mailer after MAIL FROM:<> SIZE=7965: host
home.stratos.net [207.54.80.4]: 501 bogus mail from
SMTP error from remote mailer after MAIL FROM:<> SIZE=4560: host benzie.com
[208.149.167.130]: 501 bogus mail from
SMTP error from remote mailer after MAIL FROM:<> SIZE=3932: host
mail.texportgarments.com [216.247.137.78]: 501 bogus mail from
SMTP error from remote mailer after MAIL FROM:<>: host coolchannel.com
[207.126.106.80]: 553 <>... no address specified
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