[SOLVED] sendmail delivering cron email, but nothing else

Flyte · 11-06-2010, 08:35 AM

Hi all,

On my CentOS 5.5 box Sendmail appears to only be delivering mail from the cron jobs and not any sent from anyone else, even a local user, despite the SMTP transaction going through seemingly fine.

For example:

Code:

[flyte@dade ~]$ /usr/sbin/sendmail -v flyte
Hello
.
flyte... Connecting to [127.0.0.1] via relay...
220 dade.mydomain.co.uk ESMTP Sendmail 8.13.8/8.13.8; Sat, 6 Nov 2010 13:25:11 GMT
>>> EHLO dade.mydomain.co.uk
250-dade.mydomain.co.uk Hello localhost.localdomain [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-DELIVERBY
250 HELP
>>> MAIL From:<flyte@dade.mydomain.co.uk> SIZE=6
250 2.1.0 <flyte@dade.mydomain.co.uk>... Sender ok
>>> RCPT To:<flyte@dade.mydomain.co.uk>
>>> DATA
250 2.1.5 <flyte@dade.mydomain.co.uk>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 oA6DPBwg004780 Message accepted for delivery
flyte... Sent (oA6DPBwg004780 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 dade.mydomain.co.uk closing connection

/var/log/maillog then reports this:

Code:

Nov  6 13:25:11 dade sendmail[4779]: oA6DP8HM004779: from=flyte, size=6, class=0, nrcpts=1, msgid=<201011061325.oA6DP8HM004779@dade.mydomain.co.uk>, relay=flyte@localhost
Nov  6 13:25:11 dade sendmail[4780]: oA6DPBwg004780: from=<flyte@dade.mydomain.co.uk>, size=292, class=0, nrcpts=1, msgid=<201011061325.oA6DP8HM004779@dade.mydomain.co.uk>, proto=ESMTP, daemon=Daemon0, relay=localhost.localdomain [127.0.0.1]
Nov  6 13:25:11 dade sendmail[4779]: oA6DP8HM004779: to=flyte, ctladdr=flyte (500/500), delay=00:00:03, xdelay=00:00:00, mailer=relay, pri=30006, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (oA6DPBwg004780 Message accepted for delivery)
Nov  6 13:25:12 dade sendmail[4781]: oA6DPBwg004780: to=<flyte@dade.mydomain.co.uk>, ctladdr=<flyte@dade.mydomain.co.uk> (500/500), delay=00:00:01, xdelay=00:00:01, mailer=local, pri=30533, dsn=2.0.0, stat=Sent

But here's an email from cron:

Code:

From flyte@dade.mydomain.co.uk  Sat Nov 06 03:00:04 2010
Return-Path: <flyte@dade.mydomain.co.uk>
X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on dade.mydomain.co.uk
X-Spam-Level: ****
X-Spam-Status: No, score=4.6 required=5.0 tests=ALL_TRUSTED,AWL,
	DNS_FROM_OPENWHOIS,FH_DATE_PAST_20XX autolearn=no version=3.2.5
Received: from dade.mydomain.co.uk (localhost.localdomain [127.0.0.1])
	by dade.mydomain.co.uk (8.13.8/8.13.8) with ESMTP id oA6303Kn030667
	for <flyte@dade.mydomain.co.uk>; Sat, 6 Nov 2010 03:00:04 GMT
Received: (from flyte@localhost)
	by dade.mydomain.co.uk (8.13.8/8.13.8/Submit) id oA6303Q3030666;
	Sat, 6 Nov 2010 03:00:03 GMT
Date: Sat, 6 Nov 2010 03:00:03 GMT
Message-Id: <201011060300.oA6303Q3030666@dade.mydomain.co.uk>
From: root@dade.mydomain.co.uk (Cron Daemon)
To: flyte@dade.mydomain.co.uk
Subject: Cron <flyte@dade> cd /home/flyte/scripts/; ./somescript.php
Content-Type: text/plain; charset=UTF-8
Auto-Submitted: auto-generated
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/home/flyte>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=flyte>
X-Cron-Env: <USER=flyte>
X-UID: 169
Status: RO
X-Keywords:                                                                       
Content-Length: 40

..Email content..

The emails aren't being delivered to my spam box, or to any other user, either.

I use Webmin to configure sendmail and here's the config file:

Code:

divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl #     make -C /etc/mail
dnl #
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
OSTYPE(`linux')dnl
dnl #
dnl # Do not advertize sendmail version.
dnl #
dnl define(`confSMTP_LOGIN_MSG', `$j Sendmail; $b')dnl
dnl #
dnl # default logging level is 9, you might want to set it higher to
dnl # debug the configuration
dnl #
dnl define(`confLOG_LEVEL', `9')dnl
dnl #
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
dnl define(`SMART_HOST', `smtp.your.provider')dnl
dnl #
define(`confDEF_USER_ID', ``8:12'')dnl
dnl define(`confAUTO_REBUILD')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST', `True')dnl
define(`confDONT_PROBE_INTERFACES', `True')dnl
define(`PROCMAIL_MAILER_PATH', `/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
dnl #
dnl # The following allows relaying if the user authenticates, and disallows
dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links
dnl #
dnl define(`confAUTH_OPTIONS', `A p')dnl
dnl # 
dnl # PLAIN is the preferred plaintext authentication method and used by
dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do
dnl # use LOGIN. Other mechanisms should be used if the connection is not
dnl # guaranteed secure.
dnl # Please remember that saslauthd needs to be running for AUTH. 
dnl #
dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl #     cd /etc/pki/tls/certs; make sendmail.pem
dnl # Complete usage:
dnl #     make -C /etc/pki/tls/certs usage
dnl #
dnl define(`confCACERT_PATH', `/etc/pki/tls/certs')dnl
dnl define(`confCACERT', `/etc/pki/tls/certs/ca-bundle.crt')dnl
dnl define(`confSERVER_CERT', `/etc/pki/tls/certs/sendmail.pem')dnl
dnl define(`confSERVER_KEY', `/etc/pki/tls/certs/sendmail.pem')dnl
dnl #
dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's
dnl # slapd, which requires the file to be readble by group ldap
dnl #
dnl define(`confDONT_BLAME_SENDMAIL', `groupreadablekeyfile')dnl
dnl #
dnl define(`confTO_QUEUEWARN', `4h')dnl
dnl define(`confTO_QUEUERETURN', `5d')dnl
dnl define(`confQUEUE_LA', `12')dnl
dnl define(`confREFUSE_LA', `18')dnl
define(`confTO_IDENT', `0')dnl
dnl FEATURE(delay_checks)dnl
FEATURE(`no_default_msa', `dnl')dnl
FEATURE(`smrsh', `/usr/sbin/smrsh')dnl
FEATURE(`mailertable', `hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
dnl #
dnl # The following limits the number of processes sendmail can fork to accept 
dnl # incoming messages or process its message queues to 20.) sendmail refuses 
dnl # to accept connections once it has reached its quota of child processes.
dnl #
dnl define(`confMAX_DAEMON_CHILDREN', `20')dnl
dnl #
dnl # Limits the number of new connections per second. This caps the overhead 
dnl # incurred due to forking new sendmail processes. May be useful against 
dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address 
dnl # limit would be useful but is not available as an option at this writing.)
dnl #
dnl define(`confCONNECTION_RATE_THROTTLE', `3')dnl
dnl #
dnl # The -t option will retry delivery if e.g. the user runs over his quota.
dnl #
FEATURE(local_procmail, `', `procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db', `hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
EXPOSED_USER(`root')dnl
dnl #
dnl # For using Cyrus-IMAPd as POP3/IMAP server through LMTP delivery uncomment
dnl # the following 2 definitions and activate below in the MAILER section the
dnl # cyrusv2 mailer.
dnl #
dnl define(`confLOCAL_MAILER', `cyrusv2')dnl
dnl define(`CYRUSV2_MAILER_ARGS', `FILE /var/lib/imap/socket/lmtp')dnl
dnl #
dnl # The following causes sendmail to only listen on the IPv4 loopback address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl #
dnl # The following causes sendmail to additionally listen to port 587 for
dnl # mail from MUAs that authenticate. Roaming users who can't reach their
dnl # preferred sendmail daemon due to port 25 being blocked or redirected find
dnl # this useful.
dnl #
dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 465, but
dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed
dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't
dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS
dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps
dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1.
dnl #
dnl # For this to work your OpenSSL certificates must be configured.
dnl #
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
dnl #
dnl # The following causes sendmail to additionally listen on the IPv6 loopback
dnl # device. Remove the loopback address restriction listen to the network.
dnl #
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl
dnl #
dnl # enable both ipv6 and ipv4 in sendmail:
dnl #
dnl DAEMON_OPTIONS(`Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6')
dnl #
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
FEATURE(`accept_unresolvable_domains')dnl
dnl #
dnl FEATURE(`relay_based_on_MX')dnl
dnl # 
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl # 
LOCAL_DOMAIN(`localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
dnl MASQUERADE_AS(`mydomain.com')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
dnl MAILER(cyrusv2)dnl

Local domains file:

Code:

localhost
localhost.localdomain
mydomain.co.uk

Thanks for your time.

chrism01 · 11-08-2010, 12:08 AM

Did you do this ?

Quote:

dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl # make -C /etc/mail

As it says, if you amend the orig cfg (ie sendmail.mc, and you did), then you have to regenerate the sendmail.cf as per instruction supplied.

Flyte · 11-08-2010, 02:32 PM

I hadn't done that as I was using Webmin to do the configuring, but when I do, it tells me there's nothing to do for `all'.

Flyte · 11-08-2010, 03:20 PM

I have now just installed postfix instead which works fine.

I'd love to know what the problem was, but I've had enough of it now!

Cheers

Edit:
I have just found out that the problem was with procmail, and not with sendmail at all! I set up postfix to route through procmail and that started doing the same thing. Facepalm.