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cybernaut
n00b
Joined: 01 Sep 2003
Posts: 6
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 Posted: Mon Sep 01, 2003 12:16 am Post subject: Hacking sendmail |
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For the sendmail gurus....
How do I make sendmail rewrite the outgoing mail address from user@mailserver.somedomain.net to just user@somedomain.net? I would like all of the e-mails sent through my mail server to look like they come from the domain rather than the internal hosts.
Here's my sendmail.mc ATT:
| Code: | divert(-1)
#
#
divert(0)dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`$Id: sendmail.mc,v 1.2 2002/07/04 04:55:29 g2boojum Exp $')dnl
OSTYPE(linux)dnl
DOMAIN(generic)dnl
define(`confDEF_USER_ID',``8:12'')dnl
define(`confPRIVACY_FLAGS', `authwarnings,needmailhelo,noexpn,novrfy')dnl
define(`confSMTP_LOGIN_MSG', `Mail Server 1.0')dnl
define(`LOCAL_MAILER_PATH',
ifelse(defn(`_ARG_'), `',
ifdef(`PROCMAIL_MAILER_PATH',
PROCMAIL_MAILER_PATH,
`/usr/local/bin/procmail'),
_ARG_))
define(`LOCAL_MAILER_ARGS',
ifelse(len(X`'_ARG2_), `1', `procmail -Y -a $h -z', _ARG2_))
define(`LOCAL_MAILER_FLAGS',
ifelse(len(X`'_ARG3_), `1', `PSXhmnz9', _ARG3_))
define(`LOCAL_MAILER_DSN_DIAGNOSTIC_CODE', `SMTP')
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl
define(`confTO_IDENT', 0s)
undefine(`UUCP_RELAY')dnl
undefine(`BITNET_RELAY')dnl
FEATURE(nouucp, `reject')
FEATURE(`mailertable', `hash /etc/mail/mailertable')dnl
FEATURE(`virtusertable', `hash /etc/mail/virtusertable')dnl
FEATURE(`access_db')dnl
FEATURE(`smrsh',`/usr/sbin/smrsh')dnl
MASQUERADE_AS(`somedomain.net')dnl
MASQUERADE_DOMAIN(`localhost')dnl
MASQUERADE_DOMAIN(`somedomain.net')dnl
FEATURE(`allmasquerade')dnl
FEATURE(`masquerade_envelope')dnl
FEATURE(`masquerade_entire_domain')dnl
MAILER(local)dnl
MAILER(smtp)dnl |
Everything else works fine. I not afraid the hack the sendmail.cf if I have to, but if there's a way to do it through the sendmail.mc, I'd prefer it. I've already hacked the source code and the sendmail.cf file to strip the outbound header between the client and the mailserver.
Thanks
Cybernaut |
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cybernaut
n00b
Joined: 01 Sep 2003
Posts: 6
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| Posted: Thu Sep 04, 2003 8:52 pm Post subject: |
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I found my own fix after a lot of digging...
Edit the sendmail.mc and add:
| Code: | | define(`confDOMAIN_NAME', `$m')dnl |
This forces all outgoing headers to show user@somedomain.net |
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cuban
Guru
Joined: 23 Aug 2003
Posts: 448
Location: Houston, TX
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| Posted: Mon Jan 03, 2005 9:27 pm Post subject: |
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This isn't working. Is there something else I need to do besides restarting sendmail?
_________________
Tell your ISP to support SPF/SASL AUTH (http://spf.pobox.com) today! |
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spinez
n00b
Joined: 30 Mar 2003
Posts: 58
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| Posted: Wed Jan 05, 2005 3:13 pm Post subject: |
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hrm, im by no means a sendmail guru, but in my sendmail.mc file, i have the following:
| Code: | | MASQUERADE_AS(domain.com)dnl |
which i believe does the trick for me. |
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bone
Apprentice
Joined: 07 Jun 2002
Posts: 255
Location: Midwest, USA
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| Posted: Fri Jan 07, 2005 12:26 am Post subject: |
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| spinez wrote: | hrm, im by no means a sendmail guru, but in my sendmail.mc file, i have the following:
| Code: | | MASQUERADE_AS(domain.com)dnl |
which i believe does the trick for me. |
Also note, that by default. this will not masq the domain of root unless you muck with the sendmail.cf a tad bit further and comment out the following line
C{E} root
The reason I state this is I did not think my masq was working correctly because i was testing from user root.
jt |
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