Hi all,
I've been trying to hit on the right configuration combo to allow relaying from specific users and/or domains to an internal box running Sendmail.
Reading the docs at http://www.sendmail.org/m4/anti_spam.html#relay and http://www.sendmail.org/m4/anti_spam.html#access_db_fine
I would appear that I should be able to all per-address relaying in /etc/mail/access by enabling
FEATURE(`relay_mail_from')dnl
in sendmail.mc and restarting Sendmail. Then adding test@testdomain.com to /etc/access as:
From:test@testdomain.com RELAY
Should allow relaying FROM this address, yet it doesn't seem to work for me on a CentOS 4.4 system and I can't quite hit on why.
My full sendmail.mc is...
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 # dnl # $Id: sendmail.mc,v 1.3 2006/05/09 10:48:40 root Exp $ dnl # include(`/usr/share/sendmail-cf/m4/cf.m4')dnl VERSIONID(`setup for Red Hat Linux')dnl OSTYPE(`linux')dnl define(`SMART_HOST',`mailscanner.testdomain.com') 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(`relay_mail_from')dnl FEATURE(`blacklist_recipients')dnl EXPOSED_USER(`root')dnl DAEMON_OPTIONS(`Port=smtp,Addr=192.168.24.112,Name=MTA')dnl FEATURE(`accept_unresolvable_domains')dnl LOCAL_DOMAIN(`willspc')dnl MAILER(smtp)dnl MAILER(procmail)dnl
In my maillog I just see...
Dec 20 12:10:48 willspc sendmail[24558]: kBKCAlG2024558: ruleset=check_rcpt, arg1=wmcdonald@gmail.com, relay=nectarine [192.168.24.111], reject=550 5.7.1 wmcdonald@gmail.com... Relaying denied Dec 20 12:10:48 willspc sendmail[24558]: kBKCAlG2024558: from=test@testdomain.com, size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, relay=nectarine [192.168.24.111]
Am I missing something obvious/stupid? I would have thought Sendmail would've accepted and relayed it to its smart host. Switching to "FEATURE(`relay_entire_domain')" works but seems a bit extreme.
Will.