I'm having all sorts of problems getting Exim to deliver via the right smart host (based on domain of from email). This is running on a laptop so I'm often moving between networks. *Mostly* it works. But on some networks, one or other of the smarthost routers fails for varying reasons.
I'm not sure what the best place to find help is, so feel free to point me elsewhere. And I won't try and solve all problems all at once. The general idea of the set up is that some from addresses need to be delivered via Google's servers and others need to be delivered via Microsoft's Office365 servers. Both need authentication obviously. I'll start with a DNS issue: At the moment I'm on a network and just tried to send an email using an address which ought to be routed through smtp.gmail.com. It's one of those public wifi networks where you need to sign in using a web browser first. I sent the email after connecting to the network, but before signing in. So obviously the email doesn't send. The logs show (some personal info changed): 2019-07-16 14:20:26 1hnFQ2-000379-9I <= myn...@mydomain.org.au U=dcpurton P=local S=2387 id=20190716045026.gc2...@marshwiggle.net 2019-07-16 14:20:26 1hnFQ2-000379-9I no IP address found for host smtp.gmail.com 2019-07-16 14:20:26 1hnFQ2-000379-9I == exam...@hotmail.com R=smarthost defer (-1): lookup failed for all hosts in smarthost router: host_find_failed=ignore host_all_ignored=defer So far so good. I then sign into the network and try and run exim -qf to clear the queue. But the logs then show: 2019-07-16 14:23:14 Start queue run: pid=12322 -qf 2019-07-16 14:23:14 1hnFQ2-000379-9I no IP address found for host smtp.gmail.com 2019-07-16 14:23:14 1hnFQ2-000379-9I == exam...@hotmail.com R=smarthost defer (-1): lookup failed for all hosts in smarthost router: host_find_failed=ignore host_all_ignored=defer 2019-07-16 14:23:14 End queue run: pid=12322 -qf But I can look up the domain normally on my machine: $ nslookup smtp.gmail.com Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: smtp.gmail.com canonical name = gmail-smtp-msa.l.google.com. Name: gmail-smtp-msa.l.google.com Address: 74.125.24.109 Name: gmail-smtp-msa.l.google.com Address: 2404:6800:4003:c02::6d And I can even telnet to port 587 (which the smarthost router is using): $ telnet smtp.gmail.com 587 Trying 74.125.200.109... Connected to gmail-smtp-msa.l.google.com. Escape character is '^]'. 220 smtp.gmail.com ESMTP q69sm29136621pjb.0 - gsmtp So, what is wrong? How can I diagnose things and fix it? Here's my Exim version info (I'm running Debian testing with their split configuration method): $ exim --version Exim version 4.92 #5 built 08-Jun-2019 15:37:43 Copyright (c) University of Cambridge, 1995 - 2018 (c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018 Berkeley DB: Berkeley DB 5.3.28: (September 9, 2013) Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages DANE DKIM DNSSEC Event OCSP PRDR SOCKS TCP_Fast_Open 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 Configure owner: 0:0 Size of off_t: 8 Configuration file search path is /etc/exim4/exim4.conf:/var/lib/exim4/config.autogenerated Configuration file is /var/lib/exim4/config.autogenerated Thanks, David -- David Purton e: dcpur...@marshwiggle.net
signature.asc
Description: PGP signature
-- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/