Package: exim4 Version: 4.93-5 Severity: normal This system recived no mail. Exim is setup to allow mail to be sent to a smarthost (mostly from daemons but from humans occasionally, like sending a log or config file to themselves on another system, or reportbug!).
Since a recent upgrade, the log file is spammed with many messages saying: Warning: No server certificate defined; will use a selfsigned one. Regenerating the config (this system uses single config) gives the message: 2020-01-10 11:16:32 Warning: No server certificate defined; will use a selfsigned one. Suggested action: either install a certificate or change tls_advertise_hosts option I do not want to create a certificate, nor do I want exim to use a self-signed one. There are no SMTP listeners running and nothing tries to send email to this system. I have tried removing the tls_advertise_hosts option completely from the config file (verifying it is not present in /var/lib/exim4/config.autogenerated). I have also tried including it in the config as: tls_advertise_hosts = Neither option works - exim still logs these messages. -- Package-specific info: Exim version 4.93 #5 built 03-Jan-2020 18:02:33 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 # /etc/exim4/update-exim4.conf.conf # # Edit this file and /etc/mailname by hand and execute update-exim4.conf # yourself or use 'dpkg-reconfigure exim4-config' # # Please note that this is _not_ a dpkg-conffile and that automatic changes # to this file might happen. The code handling this will honor your local # changes, so this is usually fine, but will break local schemes that mess # around with multiple versions of the file. # # update-exim4.conf uses this file to determine variable values to replace # the DEBCONFsomethingDEBCONF strings in the configuration template files. # # Most settings found in here do have corresponding questions in the # Debconf configuration, but not all of them. # # This is a Debian specific file dc_eximconfig_configtype='satellite' dc_other_hostnames='novatech.home.cobb.me.uk' dc_local_interfaces='127.0.0.1' dc_readhost='cobb.me.uk' dc_relay_domains='' dc_minimaldns='false' dc_relay_nets='' ##GRC dc_smarthost='vranx.home.cobb.me.uk' dc_smarthost='black' CFILEMODE='644' dc_use_split_config='false' dc_hide_mailname='true' dc_mailname_in_oh='true' dc_localdelivery='mail_spool' mailname:novatech.home.cobb.me.uk # /etc/default/exim4 EX4DEF_VERSION='' # 'combined' - one daemon running queue and listening on SMTP port # 'no' - no daemon running the queue # 'separate' - two separate daemons # 'ppp' - only run queue with /etc/ppp/ip-up.d/exim4. # 'nodaemon' - no daemon is started at all. # 'queueonly' - only a queue running daemon is started, no SMTP listener. # setting this to 'no' will also disable queueruns from /etc/ppp/ip-up.d/exim4 QUEUERUNNER='combined' # how often should we run the queue QUEUEINTERVAL='30m' # options common to quez-runner and listening daemon COMMONOPTIONS='' # more options for the daemon/process running the queue (applies to the one # started in /etc/ppp/ip-up.d/exim4, too. QUEUERUNNEROPTIONS='' # special flags given to exim directly after the -q. See exim(8) QFLAGS='' # options for daemon listening on port 25 SMTPLISTENEROPTIONS='' -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (990, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.3.0-3-amd64 (SMP w/8 CPU cores) Locale: LANG=en_IE.utf8, LC_CTYPE=en_IE.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_IE.utf8), LANGUAGE=en_IE.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_IE.utf8) Shell: /bin/sh linked to /bin/bash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages exim4 depends on: ii debconf [debconf-2.0] 1.5.73 ii exim4-base 4.93-5 ii exim4-daemon-light 4.93-5 exim4 recommends no packages. exim4 suggests no packages. -- debconf information: * exim4/drec:
