Well first off, can someone explain to me the reasoning
behind the bare linefeed restriction? I hope it is an actual
standard that this restriction is trying to make other MTA's
adhere to.
So anyway, 2 questions:
1) Does anyone have a list of commonly used mail
servers that violate this? Personally, I've seen a few
instances of mail servers going crazy hitting me once
per second trying to deliver mail and just getting
status 256 over and over, I'm thinking it's probably the
bare linefeed thing causing this behavior and if they're
on a bigger pipe than my qmail server, it really hurts
my connection. I'd really like to know which servers
might exhibit this behavior. Most recently, I tried to
sign up for an eval version of Legato's backup software
and all I see in my mail logs is a connection from
augusta2.legato.com every four hours with a status
of 256, nice huh?
2) The important question now is, what kind of error
does the user get when their mail server finally
gives up? Does it look like the mail was just
undeliverable? I know qmail issues the error code
that causes the mail server to try again. After that
time on the remote server expires, I'm worried that
users who may be mailing someone at a domain I
host will be getting an error message that makes it
look like a problem with my mail server, pissing my
customers off at me.
Thanks all,
Dave