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Old 01-22-2008, 10:24 AM   #1
LQ Newbie
Registered: Jan 2008
Posts: 3

Rep: Reputation: 0
Question unable to relay on sendmail

Hello folks!!

i am running FC7 with sendmail-8.14.1-4.2.fc7.

this is my problem.

I have a webserver on my fedora, but I need to relay all the email from fedora to my exchange 2003 server, I have tried almost everything and I not able to make it work, I hope and you can help me to fix this problem.

Here is my

dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/, you will need to regenerate the
dnl # /etc/mail/ file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl # make -C /etc/mail
dnl #
VERSIONID(`setup for 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 #
define(`SMART_HOST', `pidom.local')
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
define(`confHOSTS_FILE', `/etc/hosts')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 #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl # cd /usr/share/ssl/certs; make sendmail.pem
dnl # Complete usage:
dnl # make -C /usr/share/ssl/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
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
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 # and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl DAEMON_OPTIONS(`Port=smtp,Addr=, Name=MTA')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 #
dnl #
dnl FEATURE(`relay_based_on_MX')dnl
dnl #
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl #
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from
dnl #
dnl MASQUERADE_AS(`')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just, but @* as well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
#dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(pidom.local)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
dnl MAILER(cyrusv2)dnl

Here is my access file:

# Check the /usr/share/doc/sendmail/ file for a description
# of the format of this file. (search for access_db in that file)
# The /usr/share/doc/sendmail/ is part of the sendmail-doc
# package.
# by default we allow relaying from localhost...
Connect:localhost.localdomain RELAY
Connect:localhost RELAY
Connect: RELAY

# Relay Local
#localhost RELAY
#helpdesk RELAY
#helpdesk.pidom.local RELAY
# Exchange

# Relay domains RELAY
#To:domain.local RELAY

Here is my mailertable:

# The "mailer table" can be used to override routing for particular domains
# (which are not in class {w}, i.e. local host names).
# hash /etc/mail/mailertable
# Keys in this database are fully qualified domain names or partial domains
# preceded by a dot -- for example, "vangogh.CS.Berkeley.EDU" or
# ".CS.Berkeley.EDU". As a special case of the latter, "." matches any domain
# not covered by other keys. Values must be of the form:
# mailer:domain
# where "mailer" is the internal mailer name, and "domain" is where to send
# the message. These maps are not reflected into the message header. As a
# special case, the forms:
# local:user
# will forward to the indicated user using the local mailer,
# local:
# will forward to the original user in the e-mail address using the local
# mailer, and
# error:code message
# error.S.N:code message
# will give an error message with the indicated SMTP reply code and message,
# where D.S.N is an RFC 1893 compliant error code.
domain.local smtp:[] smtp:[]

Here is my relay-domains:


Here is my local-host-name:

# local-host-names - include all aliases for your machine here.

When I make a change on I do this:

m4 /etc/mail/ > /etc/mail/

if I make a change on access file or mailertable, I do this:

makemap hash /etc/mail/access.db < /etc/mail/access
makemap hash /etc/mail/mailertable.db < /etc/mail/mailertable

Here is my nslookup:

[root@helpdesk mail]# nslookup
> set type=mx
> piexch01.pidom.local <<<--- Didnt response from the server.

*** Can't find piexch01.pidom.local: No answer

[root@helpdesk mail]# nslookup
> set type=mx
> pidom.local <<<<< I got a response if I ask directly to the domain.

pidom.local mail exchanger = 10 piexch01.pidom.local.

Any suggestions??

Old 01-22-2008, 05:14 PM   #2
Registered: Dec 2005
Location: Lawrenceville GA
Distribution: Slackware, CentOS. Red Hat Enterprise Linux
Posts: 216

Rep: Reputation: 31
OK, just quickly looking over your config files, it looks like the domains are local to Sendmail and Sendmail will try to deliver the mail locally rather than sending it on to the exchange server. You need to see how Sendmail will handle the mail delivery by using the address test.

sendmail -bt will put in in the address test mode.

3,0 will show you how Sendmail will route mail to this person from the outside. Then you try to make changes to your cf file to see if Sendmail will route things differently.
Old 01-22-2008, 06:50 PM   #3
LQ Newbie
Registered: Jan 2008
Posts: 3

Original Poster
Rep: Reputation: 0
Thank you for your response.

I did that, and here is the output: ( sorry, but I dont know to much about sendmail.)

this is go to gmail.

[root@helpdesk mail]# sendmail -bt
ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>
> 3,0
canonify input: manny . networksupport @ gmail . com
Canonify2 input: manny . networksupport < @ gmail . com >
Canonify2 returns: manny . networksupport < @ gmail . com . >
canonify returns: manny . networksupport < @ gmail . com . >
parse input: manny . networksupport < @ gmail . com . >
Parse0 input: manny . networksupport < @ gmail . com . >
Parse0 returns: manny . networksupport < @ gmail . com . >
ParseLocal input: manny . networksupport < @ gmail . com . >
ParseLocal returns: manny . networksupport < @ gmail . com . >
Parse1 input: manny . networksupport < @ gmail . com . >
Mailertable input: < gmail . com > manny . networksupport < @ gmail . com . >
Mailertable input: gmail . < com > manny . networksupport < @ gmail . com . >
Mailertable returns: manny . networksupport < @ gmail . com . >
Mailertable returns: manny . networksupport < @ gmail . com . >
MailerToTriple input: < . pidom . local > manny . networksupport < @ gmail . com . >
MailerToTriple returns: $# relay $@ . pidom . local $: manny . networksupport < @ gmail . com . >
Parse1 returns: $# relay $@ . pidom . local $: manny . networksupport < @ gmail . com . >
parse returns: $# relay $@ . pidom . local $: manny . networksupport < @ gmail . com . >

and this is to a local address:

[root@helpdesk mail]# sendmail -bt
ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>
> 3,0 egarcia@pidom.local
canonify input: egarcia @ pidom . local
Canonify2 input: egarcia < @ pidom . local >
Canonify2 returns: egarcia < @ pidom . local . >
canonify returns: egarcia < @ pidom . local . >
parse input: egarcia < @ pidom . local . >
Parse0 input: egarcia < @ pidom . local . >
Parse0 returns: egarcia < @ pidom . local . >
ParseLocal input: egarcia < @ pidom . local . >
ParseLocal returns: egarcia < @ pidom . local . >
Parse1 input: egarcia < @ pidom . local . >
Parse1 returns: $# local $: egarcia
parse returns: $# local $: egarcia

I cant read the output! Please help!

Old 01-23-2008, 12:04 PM   #4
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Registered: Jan 2008
Posts: 3

Original Poster
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I got it working!!!

there is only one change to make the relay working on exchange.
on, we need to add the smart host, and that's it!!, no access table modification no relay-domains.... no local-host-domains..... I just add my smtp server to the cf file, and on my mailertable, and that's it!! well I had to add the FQDN on my hosts file too.

Thank you everybody!!!
Old 01-30-2008, 09:23 AM   #5
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Registered: Nov 2004
Location: Dallas
Distribution: Suse 9.1
Posts: 15

Rep: Reputation: 0
I was about to suggest this!


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