I have a couple of CentOS 5.3 systems and I have the same problem on all of those systems. When I send an email to 'root' (without specifying a domain) the email is rejected by the email provider. The funny thing is that the email I get back from my mail system is sent to effectively the same user and that email I do get.
This makes that both emails from my cron and asterisk are first rejected and then I get them as an attachment in the mail from my mailerdeamon.
As far as I can tell this is because of the 'From' that is classified as 'Does not exist'. I do not understand how the 'firewall.basjes.nl' hostname (= the system hooked to my cable modem) gets into the email verification.
My question is: What generic setting must I change to make this work for all programms (not just cron and asterisk) in one go?
I've placed as much relevant info below.
(I replaced all @ with #$# to avoid additional spam)
Notes:
- My ISP is Ziggo and must relay via their outgoging smtp relay.
- My mail is hosted via google apps.
- I have a local /root/.forward that contains LogFilesHobby#$#basjes.nl
Command to create this email:
# mail -s TEST root
asdfasdfa
.
Cc:
Relevant section of /var/log/maillog
Jun 22 09:54:51 hobby sendmail[3055]: n5M7sooT003055: from=root, size=35, class=0, nrcpts=1, msgid=<200906220754.n5M7sooT003055#$#hobby.basjes.nl>, relay=root#$#localhost
Jun 22 09:54:51 hobby sendmail[3056]: n5M7spZh003056: from=<root#$#hobby.basjes.nl>, size=317, class=0, nrcpts=1, msgid=<200906220754.n5M7sooT003055#$#hobby.basjes.nl>, proto=ESMTP, daemon=MTA, relay=hobby.basjes.nl [127.0.0.1]
Jun 22 09:54:51 hobby sendmail[3055]: n5M7sooT003055: to=root, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30035, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (n5M7spZh003056 Message accepted for delivery)
Jun 22 09:54:54 hobby sendmail[3057]: n5M7spZh003056: to=LogFilesHobby#$#basjes.nl, ctladdr=<root#$#hobby.basjes.nl> (0/0), delay=00:00:03, xdelay=00:00:03, mailer=relay, pri=30530, relay=smtp.ziggo.nl [212.54.34.9], dsn=5.0.0, stat=Service unavailable
Jun 22 09:54:54 hobby sendmail[3057]: n5M7spZh003056: n5M7ssZh003057: DSN: Service unavailable
Jun 22 09:54:54 hobby sendmail[3057]: n5M7ssZh003057: to=LogFilesHobby#$#basjes.nl, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=31554, relay=smtp.ziggo.nl, dsn=2.0.0, stat=Sent (OK id=1MIeMf-0002Z6-UP)
The reply email I received:
The original message was received at Mon, 22 Jun 2009 09:54:51 +0200
from hobby.basjes.nl [127.0.0.1]
----- The following addresses had permanent fatal errors -----
LogFilesHobby#$#basjes.nl
(reason: 550-Verification failed for <root#$#firewall.basjes.nl>)
(expanded from: <root#$#hobby.basjes.nl>)
----- Transcript of session follows -----
... while talking to smtp.ziggo.nl:
>>> MAIL From:<root#$#hobby.basjes.nl> SIZE=530
<<< 550-Verification failed for <root#$#firewall.basjes.nl>
<<< 550-Called: 209.85.219.47
<<< 550-Sent: RCPT TO:<root#$#firewall.basjes.nl>
<<< 550-Response: 550-5.1.1 The email account that you tried to reach does not exist. Please try
<<< 550-550-5.1.1 double-checking the recipient's email address for typos or
<<< 550-550-5.1.1 unnecessary spaces. Learn more at
<<< 550-550 5.1.1 http://mail.google.com/support/bin/answer.py?answer=6596 27si11493246ewy.99
<<< 550 B002 Sender e-mail address invalid / Afzender e-mail adres bestaat niet
554 5.0.0 Service unavailable
Final-Recipient: RFC822; root#$#hobby.basjes.nl
X-Actual-Recipient: RFC822; LogFilesHobby#$#basjes.nl
Action: failed
Status: 5.0.0
Diagnostic-Code: SMTP; 550-Verification failed for <root#$#firewall.basjes.nl>
Last-Attempt-Date: Mon, 22 Jun 2009 09:54:54 +0200
---------- Doorgestuurd bericht ----------
From: root <root#$#hobby.basjes.nl>
To: root#$#hobby.basjes.nl
Date: Mon, 22 Jun 2009 09:54:50 +0200
Subject: TEST
asdfasdfa
[root@hobby /etc/mail]# cat sendmail.mc | grep -v '^dnl '
divert(-1)dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
OSTYPE(`linux')dnl
define(`SMART_HOST', `smtp.ziggo.nl')dnl
define(`confDEF_USER_ID', ``8:12'')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
define(`confTO_IDENT', `0')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
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
DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
FEATURE(`accept_unresolvable_domains')dnl
LOCAL_DOMAIN(`localhost.localdomain')dnl
MASQUERADE_AS(`basjes.nl')dnl
FEATURE(masquerade_envelope)dnl
FEATURE(masquerade_entire_domain)dnl
MASQUERADE_DOMAIN(localhost)dnl
MASQUERADE_DOMAIN(localhost.localdomain)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
