intentionally bad delivery

Kyle Wheeler · *nix forums Guru Wannabe Joined: 07 Jan 2005 Posts: 208

On Thursday, July 6 at 10:28 AM, quoth Charles Cazabon:

Charles Cazabon · *nix forums Guru Joined: 08 Jan 2005 Posts: 805

Kyle Wheeler <kyle-qmail@memoryhole.net> wrote:

Kyle Wheeler · *nix forums Guru Wannabe Joined: 07 Jan 2005 Posts: 208

This may be the wrong place to ask this, and if so, just ignore the
email.

I'm trying to do a "single-attempt, failure is always permanent" sort
of delivery. Specifically, I'm using fetchmail to pull down mail from
an old hotmail account. I almost never get non-spam mail there, but
that's why I keep it, as a spamtrap to hand out to random companies
that demand email addresses. In fetchmail, I'm using the "mda" command
to tell it to send it to qmail: '/var/qmail/bin/sendmail me@here.com'
The problem is, every now and then, I get spam that has badly formed
headers. For example, I got one like this:

From: Free Muffins! Smile

<foo@bar.com>

Qmail's sendmail can't parse the From header, and so rejects it, which
makes fetchmail retry later (and generate cron email), which wastes
bandwidth as the same mail is fetched every time fetchmail gets run.
Is there a way to make qmail more accepting, or (if not accepting) get
it to simply silently discard such malformed messages? I was thinking
of using some sort of shell-script wrapper around qmail-inject to do
it (e.g. force the return value to be good, and suppress the warning
messages), but I'm not sure what the best way about it is. Anyone have
any advice or suggestions? Or is this a very bad idea for some reason?

~Kyle
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