Unexpected lmtpproxy response

[JP Howard]

On Wed, 11 Dec 2002 17:06:51 +1100, "Rob Mueller" <robm at fastmail.fm>
said:
> Every now and then, we see the following error in our logs:
> 
> Dec  6 22:29:20 www postfix/lmtp[15516]: 7319A58B2: to=<xyz>,
> relay=/var/imap/socket/lmtpprox[/var/imap/socket/lmtpprox], delay=218,
> status=bounced (host /var/imap/socket/lmtpprox[/var/imap/socket/lmtpprox]
> said: 250 2.1.5 ok (in reply to DATA command))
> 
<...>
> There are a few specifics that seem to trigger it:
> 1. We're using a unix socket. If we change to an inet one with an
> internal IP address, the problem doesn't seem to occur

Actually, we haven't confirmed #1 as yet. I'm not sure whether or not it
occurs with a TCP socket.