Package: sendmail
Version: 8.15.2-8
Severity: normal
Dear Maintainer,
After upgrade from jessie to stretch, sendmail is now deferring certain emails
and logging a "timeout writing message to"
The error/bounce is not correct because the host is availible and there are no
timneout issues, the issue lies with a dns lookup error with one of the senders
of the email (sendmail debug below).
-- sendmail debug server names changed for privacy
250-fw1.domain.co.za Hello mailhub03.domain.co.za [x.x.x.236] (may be forged),
pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-EXPN
250-VERB
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> MAIL From:<valid@sender> SIZE=23640 BODY=7BIT AUTH=<>
250 2.1.0 <valid@sender>... Sender ok
>>> RCPT To:<valid@rcpt>
>>> DATA
250 2.1.5 <valid@rcpt>... Recipient ok
354 Enter mail, end with "." on a line by itself
ferrelec.com.uy: Name server timeout
timeout writing message to dsl-web04.domain.co.za.
<valid@rcpt>... Deferred: Name server: dsl-web04.domain.co.za.: host name
lookup failure
Closing connection to dsl-web04.domain.co.za.
The issue lies with a To: address in the mail ec...@ferrelec.com.uy which
doesnt seem to have an MX record, whats confusing is the log entry by sendmail
"timeout writing message to"
dig mx ferrelec.com.uy
; <<>> DiG 9.10.3-P4-Debian <<>> mx ferrelec.com.uy
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 60854
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;ferrelec.com.uy. IN MX
dig any ferrelec.com.uy
;; Truncated, retrying in TCP mode.
; <<>> DiG 9.10.3-P4-Debian <<>> any ferrelec.com.uy
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60715
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;ferrelec.com.uy. IN ANY
;; ANSWER SECTION:
ferrelec.com.uy. 3600 IN NS gehena.movinet.com.uy.
ferrelec.com.uy. 3600 IN NS ns04.movinet.com.uy.
-- Package-specific info:
Output of /usr/share/bug/sendmail/script:
ls -alR /etc/mail:
/etc/mail:
total 372
drwxr-sr-x 7 smmta smmsp 4096 Jul 14 09:35 .
drwxr-xr-x 96 root root 12288 Jul 25 14:57 ..
-rwxr-xr-- 1 root smmsp 9536 Jul 14 09:35 Makefile
-rw-r--r-- 1 root root 281 Dec 8 2016 address.resolve
-rw-r--r-- 1 root root 3611 Jul 14 09:35 databases
-rw-r----- 1 smmta smmsp 54 Jul 7 11:01 default-auth-info
-rw-r--r-- 1 root smmsp 0 Jul 7 11:01 domaintable
-rw-r----- 1 root smmsp 12288 Jul 14 09:35 domaintable.db
-rw-r--r-- 1 root root 5659 Dec 8 2016 helpfile
drwxr-sr-x 2 smmta smmsp 4096 Jul 14 09:36 m4
-rw-r--r-- 1 root root 18099 Jan 17 2017 mimedefang-filter
-rw-r--r-- 1 root root 276 Jun 23 2010 mimedefang.pl.conf
drwxr-xr-x 2 root root 4096 Jul 14 09:19 peers
drwxr-xr-x 2 smmta smmsp 4096 Jul 7 11:01 sasl
-rw-r--r-- 1 root smmsp 74239 Jul 14 09:35 sendmail.cf
-rw-r--r-- 1 root root 73737 Jul 14 09:35 sendmail.cf.old
-rw-r--r-- 1 root root 12236 Jul 14 09:35 sendmail.conf
-rw-r--r-- 1 root smmsp 5948 Jul 14 09:35 sendmail.mc
-rw-r--r-- 1 root root 149 Dec 8 2016 service.switch
-rw-r--r-- 1 root root 180 Dec 8 2016 service.switch-nodns
drwxr-sr-x 2 smmta smmsp 4096 Jul 7 11:01 smrsh
-rw-r--r-- 1 root smmsp 44611 Jul 14 09:35 submit.cf
-rw-r--r-- 1 root root 44053 Jul 14 09:35 submit.cf.old
-rw-r--r-- 1 root smmsp 2374 Jul 14 09:35 submit.mc
drwxr-xr-x 2 smmta smmsp 4096 Jul 7 11:01 tls
-rw-r--r-- 1 root smmsp 0 Jul 7 11:01 trusted-users
/etc/mail/m4:
total 12
drwxr-sr-x 2 smmta smmsp 4096 Jul 14 09:36 .
drwxr-sr-x 7 smmta smmsp 4096 Jul 14 09:35 ..
-rw-r--r-- 1 root smmsp 790 Jan 30 22:27 clamav-milter.m4
-rw-r----- 1 root smmsp 0 Jul 7 11:01 dialup.m4
-rw-r----- 1 root smmsp 0 Jul 7 11:01 provider.m4
/etc/mail/peers:
total 12
drwxr-xr-x 2 root root 4096 Jul 14 09:19 .
drwxr-sr-x 7 smmta smmsp 4096 Jul 14 09:35 ..
-rw-r--r-- 1 root root 328 Dec 8 2016 provider
/etc/mail/sasl:
total 16
drwxr-xr-x 2 smmta smmsp 4096 Jul 7 11:01 .
drwxr-sr-x 7 smmta smmsp 4096 Jul 14 09:35 ..
-rw-r----- 1 smmta smmsp 885 Jul 7 11:01 Sendmail.conf.2
-rwxr--r-- 1 root root 3685 Jul 14 09:35 sasl.m4
/etc/mail/smrsh:
total 8
drwxr-sr-x 2 smmta smmsp 4096 Jul 7 11:01 .
drwxr-sr-x 7 smmta smmsp 4096 Jul 14 09:35 ..
lrwxrwxrwx 1 smmta smmsp 35 Oct 22 2013 doublebounce.pl ->
/usr/share/sendmail/doublebounce.pl
lrwxrwxrwx 1 root smmsp 26 Jul 7 11:01 mail.local ->
/usr/lib/sm.bin/mail.local
lrwxrwxrwx 1 root smmsp 17 Jul 7 11:01 procmail -> /usr/bin/procmail
/etc/mail/tls:
total 48
drwxr-xr-x 2 smmta smmsp 4096 Jul 7 11:01 .
drwxr-sr-x 7 smmta smmsp 4096 Jul 14 09:35 ..
-rw-r--r-- 1 root root 7 Jul 7 11:01 no_prompt
-rw------- 1 root root 1191 Jul 7 11:01 sendmail-client.cfg
-rw-r--r-- 1 root smmsp 1261 Jul 7 11:01 sendmail-client.crt
-rw------- 1 root root 1029 Jul 7 11:01 sendmail-client.csr
-rw-r----- 1 root smmsp 1679 Jul 7 11:01 sendmail-common.key
-rw-r----- 1 root smmsp 1650 Jul 7 11:01 sendmail-common.prm
-rw------- 1 root root 1191 Jul 7 11:01 sendmail-server.cfg
-rw-r--r-- 1 root smmsp 1261 Jul 7 11:01 sendmail-server.crt
-rw------- 1 root root 1029 Jul 7 11:01 sendmail-server.csr
-rwxr--r-- 1 root root 3260 Jul 14 09:35 starttls.m4
sendmail.conf:
DAEMON_NETMODE="Static";
DAEMON_NETIF="eth0";
DAEMON_MODE="Daemon";
DAEMON_PARMS="";
DAEMON_HOSTSTATS="No";
DAEMON_MAILSTATS="No";
QUEUE_MODE="${DAEMON_MODE}";
QUEUE_INTERVAL="10m";
QUEUE_PARMS="";
MSP_MODE="Cron";
MSP_INTERVAL="20m";
MSP_PARMS="";
MSP_MAILSTATS="${DAEMON_MAILSTATS}";
MISC_PARMS="";
CRON_MAILTO="root";
CRON_PARMS="";
LOG_CMDS="No";
HANDS_OFF="No";
AGE_DATA="";
DAEMON_RUNASUSER="No";
DAEMON_STATS="${DAEMON_MAILSTATS}";
MSP_STATS="${MSP_MAILSTATS}";
sendmail.mc:
divert(-1)dnl
divert(0)dnl
define(`_USE_ETC_MAIL_')dnl
include(`/usr/share/sendmail/cf/m4/cf.m4')dnl
include(`/etc/mail/sasl/sasl.m4')dnl
VERSIONID(`$Id: sendmail.mc, v 8.14.3-9 2009-03-01 18:51:56 cowboy Exp $')
OSTYPE(`debian')dnl
DOMAIN(`debian-mta')dnl
undefine(`confHOST_STATUS_DIRECTORY')dnl #DAEMON_HOSTSTATS=
FEATURE(`no_default_msa')dnl
DAEMON_OPTIONS(`Family=inet, Name=MTA-v4, Port=smtp, Addr=0.0.0.0')dnl
DAEMON_OPTIONS(`Family=inet, Name=MSP-v4, Port=submission, M=Ea,
Addr=0.0.0.0')dnl
define(`confPRIVACY_FLAGS',dnl
`needmailhelo,needexpnhelo,needvrfyhelo,restrictqrun,restrictexpand,nobodyreturn,authwarnings')dnl
define(`confCONNECTION_RATE_THROTTLE', `15')dnl
define(`confCONNECTION_RATE_WINDOW_SIZE',`10m')dnl
FEATURE(`use_cw_file')dnl
define(`confCW_FILE', `@LDAP')dnl
FEATURE(`access_db', `LDAP')dnl
FEATURE(`greet_pause', `1000')dnl 1 seconds
FEATURE(`delay_checks', `friend', `n')dnl
define(`confBAD_RCPT_THROTTLE',`3')dnl
FEATURE(`conncontrol', `nodelay', `terminate')dnl
FEATURE(`ratecontrol', `nodelay', `terminate')dnl
LOCAL_CONFIG
LOCAL_CONFIG
Cwmailhub03.domain.co.za
FEATURE(`use_cw_file')dnl
FEATURE(`use_ct_file')dnl
FEATURE(`mailertable', `LDAP')dnl
FEATURE(`virtusertable', `LDAP')dnl
FEATURE(`domaintable')dnl
FEATURE(`smrsh')dnl
FEATURE(`blacklist_recipients')dnl
define(`confSMTP_LOGIN_MSG', `')dnl
define(`confTO_IDENT', `0')dnl
define(`confLDAP_CLUSTER',`mailhub.domain.co.za')dnl
define(`ALIAS_FILE', `ldap:')dnl
define(`confPRIVACY_FLAGS', `noexpn,novrfy,noverb,noetrn')dnl
define(`confLOG_LEVEL', `10')dnl
define(`confMAX_MESSAGE_SIZE',`15000000')dnl
define(`confDOUBLE_BOUNCE_ADDRESS',`doublebounce')dnl
FEATURE(`ldap_routing', `ldap -1 -T<TMPF> -v mailHost -k
(&(objectClass=inetLocalMailRecipient)(mailLocalAddress=%0))',`ldap -1 -T<TMPF>
-v mailRoutingAddress -k
(&(objectClass=inetLocalMailRecipient)(mailLocalAddress=%0))')dnl
define(`confLDAP_DEFAULT_SPEC',`-h "localhost" -b "dc=root"')dnl
LDAPROUTE_DOMAIN_FILE(`@ldap:-k
(&(objectClass=sendmailMTAClass)(sendmailMTAClassName=w)(|(sendmailMTACluster=mailhub.domain.co.za)(sendmailMTAHost=mailhub03.domain.co.za)))
-v sendmailMTAClassValue')dnl
INPUT_MAIL_FILTER(`mimedefang', `S=unix:/var/spool/MIMEDefang/mimedefang.sock,
F=T, T=S:1m;R:1m')dnl
include(`/etc/mail/m4/clamav-milter.m4')dnl
define(`confINPUT_MAIL_FILTERS', `clamav,mimedefang')dnl
MAILER_DEFINITIONS
MAILER(local)dnl
MAILER(smtp)dnl
LOCAL_CONFIG
submit.mc...
divert(-1)dnl
divert(0)dnl
define(`_USE_ETC_MAIL_')dnl
include(`/usr/share/sendmail/cf/m4/cf.m4')dnl
VERSIONID(`$Id: submit.mc, v 8.15.2-8 2016-12-08 18:43:49 cowboy Exp $')
OSTYPE(`debian')dnl
DOMAIN(`debian-msp')dnl
FEATURE(`msp', `[127.0.0.1]', `25')dnl
-- System Information:
Debian Release: 9.1
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 4.9.0-3-686-pae (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968), LANGUAGE=C
(charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages sendmail depends on:
ii sendmail-base 8.15.2-8
ii sendmail-bin 8.15.2-8
ii sendmail-cf 8.15.2-8
ii sensible-mda 8.15.2-8
sendmail recommends no packages.
Versions of packages sendmail suggests:
pn rmail <none>
pn sendmail-doc <none>
Versions of packages sensible-mda depends on:
ii libc6 2.24-11+deb9u1
ii procmail 3.22-25+b1
ii sendmail-bin [mail-transport-agent] 8.15.2-8
Versions of packages libmilter1.0.1 depends on:
ii libc6 2.24-11+deb9u1
Versions of packages sendmail-bin depends on:
ii debconf 1.5.61
ii libc6 2.24-11+deb9u1
ii libdb5.3 5.3.28-12+b1
ii libldap-2.4-2 2.4.44+dfsg-5
ii liblockfile1 1.14-1+b1
ii libsasl2-2 2.1.27~101-g0780600+dfsg-3
ii libssl1.1 1.1.0f-3
ii libwrap0 7.6.q-26
ii lsb-base 9.20161125
ii procps 2:3.3.12-3
ii sendmail-base 8.15.2-8
ii sendmail-cf 8.15.2-8
Versions of packages sendmail-bin suggests:
ii libsasl2-modules 2.1.27~101-g0780600+dfsg-3
ii openssl 1.1.0f-3
ii sasl2-bin 2.1.27~101-g0780600+dfsg-3
pn sendmail-doc <none>
-- no debconf information
