Mutt devnulled my message!
Granted, I'm using an old-ish version (1.4.2.2i) but I'll report this
just in case newer releases are still misbehaving.
In short, Mutt sent my email and then chucked it into bit-heaven because
I had specified an invalid Fcc.
That's bad! Very bad!! A nicer behaviour would have been backing up my
message to a dotfile in my $HOME (like Slrn does).
BTW, the invalid Fcc I had specified was '.' (what I was trying to say
was "put it in the current friggin' mailbox!" - there *should* be a
quick way to say this, in case there still isn't).
--
~> cat /etc/redhat-release && uname -a
Scientific Linux SL release 5.1 (Boron)
Linux acerrimo.local 2.6.18-92.1.6.el5 #1 SMP Wed Jun 25 12:46:39 EDT
2008 i686 athlon i386 GNU/Linux