[Pkg-exim4-users] rejected RCPT Unrouteable address

[James Nightly]

Any tips or suggestions where to look, I've been at it for days now...

exim -C /etc/exim4/exim4.conf.template -bV
Exim version 4.84 #3 built 29-Aug-2014 18:08:29
Copyright (c) University of Cambridge, 1995 - 2014
(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014
Berkeley DB: Berkeley DB 5.3.28: (September  9, 2013)
Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages DKIM PRDR OCSP
Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch cdb dbm
dbmjz dbmnz dnsdb dsearch nis nis0 passwd
Authenticators: cram_md5 plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp
Fixed never_users: 0
Size of off_t: 8
Configuration file is /etc/exim4/exim4.conf.template

220 lists.myschool.org ESMTP Exim 4.84 Thu, 11 Sep 2014 12:27:26 -0700 [5756 ms]
EHLO MXTB-PWS3.mxtoolbox.com
250-lists.myschool.org Hello mxtb-pws3.mxtoolbox.com [64.20.227.133]
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250 HELP [671 ms]
MAIL FROM: <supertool at mxtoolbox.com>
250 OK [671 ms]
RCPT TO: <test at example.com>
550 relay not permitted [686 ms]

MXTB-PWS3v2 8674ms

On Thu, Sep 11, 2014 at 1:17 PM, James Nightly <exim4debian at gmail.com> wrote:
> I'm trying to setup Exim4 with Mailman. I'm on Debian testing. I have
> router and everything setup according to the excellent Exim how-to.
> The server can send messages, but if I reply to the sender the error
> logs shows Unrouteable address. I'm using split configuration file.
>
> exim4 -bt mailman at lists.myschool.org
> R: system_aliases for mailman at lists.myschool.org
> mailman at lists.myschool.org is undeliverable: Unrouteable address