My qmail is a roach motel...

....messages check-in, but they don't check out.

I have a freebsd server that's been using qmail to happily shuttle
around mail to a variety of users and accounts for over 2 years.
Unfortunately, for reasons I don't know yet, mail delivery began
getting slower and slower (more than a day's delay).

But that's not why I'm posting: as part of a deck-clearing effort to
figure out what was causing the slowdown, I bounced the server and now
I am not receiving any mail :( I have not changed anything in
the .qmail files or other set-ups that were happy for so long.

The strange thing is that everything *seems* to be running (qmailctl
stat):

/service/qmail-send: up (pid 93348) 3101 seconds
/service/qmail-send/log: up (pid 93349) 3101 seconds
/service/qmail-smtpd: up (pid 93352) 3101 seconds
/service/qmail-smtpd/log: up (pid 93353) 3101 seconds
messages in queue: 1
messages in queue but not yet preprocessed: 0

(aside note, before it stopped delivering mail altogether, there were
over 7k messages in the queue. None of those have ever appeared
again).

and looking at /var/log/qmail/current, there seems to be mail moving
in and out.

@40000000469048501fc46c64 new msg 24166
@40000000469048501fdef174 info msg 24166: bytes 1834 from
<non.a.mouse@gmail.com> qp 15915 uid 1001
@4000000046904850203a2134 starting delivery 139: msg 24166 to remote
other@account.net
@40000000469048502043a6b4 status: local 1/10 remote 1/20
@40000000469048502048c734 delivery 138: success: did_0+1+0/qp_15915/


But mail never gets received. It almost feels like something failed
to start up, but I don't know what.

Any thoughts? Even a new place to look would be useful. Thanks. :(

Mouse.