On Thu, Oct 26, 2000 at 08:29:42PM -0400, Hubbard, David wrote:
> 1) Does anyone have a list of commonly used mail
> servers that violate this?
I've seen mainly Lotus, MS, Novell and even Netscape Mailserver running
on Solaris producing this kind of problems.
>From my experience most of the failures result from bounces. MTAs that
otherwise act rather smoothly send bare LFs when they produce bounces.
If you have a look at the lists of bugfixes for each micro release of
ths mailservers I wonder how those work at all.
For the problem with the Microsoft SMTP hammering on other mailservers
this is a Microsoft confirmed bug. The fix is already about one year old
but the fix is not publicly available and one has to pay for it (by
calling Microsoft Product Support Services with a $200 fee in order
to get it mailed three days later)
The info is at
http://support.microsoft.com/support/kb/articles/Q224/9/83.ASP
and you'll have to get
Smtpsvc.dll 5.5.1877.20
I don't know of any other fixes for the other MTAs. (I have spent at
least 3 hours searching databases and reading bug fix lists at Novell
and Lotus)
If someone has any information I'd be really glad getting it.
One note though: I have patched qmail-qmtpd to log bare LF rejects
and checking those hosts for relay open MTAs I have a hit rate of
about 80%, so blocking MTAs sending base LFs is a good SPAM protection ;-))
\Maex
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