SendMail conf for use externa SMTP server

[Paul Howarth]

Guillermo Garron wrote:
> Hi all,
> 
> I have a laptop with FC5 and wanted to use it as my smtp server and also
> wanted to receive my logwatch reports each day.
> the problem is that because all the battle against spam my laptop is no
> accepted almos anywhere so i start to configure my sendmail server to 
> use an
> externet smtp server.
> 
> I followed this steps
> ___________________________________
> Step 4: add to your sendmail.mc in /etc:
> 
>    FEATURE(`access_db')dnl
>    FEATURE(`authinfo', `hash /etc/mail/authinfo')
>    define(`SMART_HOST',`outgoing.verizon.net')dnl
>    MASQUERADE_AS(verizon.net)dnl
>    FEATURE(`allmasquerade')dnl
>    FEATURE(`masquerade_envelope')dnl
>    FEATURE(genericstable, `hash -o /etc/mail/genericstable')dnl
>    GENERICS_DOMAIN_FILE(`/etc/mail/genericsdomain')dnl
> 
> Step 5: copy the entire sendmail build subdirectory 
> sendmail-8-13.2/cf/cf to
> /usr/share/sendmail-cf/
> 
> Step 6: m4 /etc/sendmail.mc > /etc/sendmail.cf
> 
> Step 7: add the following lines to the files /etc/mail/access,
> /etc/mail/authinfo, /etc/mail/genericstable, /etc/mail/genericsdomain
> 
>    access
>        From:ME at verizon.net             RELAY
> 
>    authinfo
>        AuthInfo:outgoing.verizon.net "U:ME at verizon.net"
> "I:<MY_VZ_ACCOUNT>" "P:<MY_VZ_PASSWORD>" "M:LOGIN PLAIN"
> 
>    genericstable
>        <MY_LOCAL_NAME> ME at verizon.net
> 
>    genericsdomain
>        localhost.localdomain
> 
> Step 8: make the db files:
>        makemap hash access.db < access
>        makemap hash authinfo.db < authinfo
>        makemap hash genericstable.db < genericstable
> 
> Step 9: /etc/init.d/sendmail restart
> 
> Step 10: test by:
> 
>    > sendmail -bv ME at verizon.net
>      Notice: -bv may give misleading output for non-privileged user
>      ME at verizon.net... deliverable: mailer relay, host
> outgoing.verizon.net, user ME at verizon.net
> 
> _____________________________
> 
> step from 1 to 3 are compiling the sendmail server, mine is already 
> compiled
> even witch sasl support, ok, once i finished this steps i try to send an
> email from the console using this
> 
> mail me at yahoo.com
> it worked since i was logged as my user in my laptop
> 
> i realized that the emails send by root was not able to go out, and receive
> a Domain not found error
> i tried logged as root
> mail me at yahoo.com
> with no good results,
> 
> this are the logs at my external smtp server using my user and root.
> ----------------------
> Jul  7 10:01:06 scz postfix/smtpd[16260]: connect from
> host-65-173-60-214.acelerate.net[65.173.60.214]
> Jul  7 10:01:07 scz postfix/smtpd[16260]: setting up TLS connection from
> host-65-173-60-214.acelerate.net[65.173.60.214]
> Jul  7 10:01:07 scz postfix/smtpd[16260]: TLS connection established from
> host-65-173-60-214.acelerate.net[65.173.60.214]: TLSv1 with cipher
> DHE-RSA-AES256-SHA (256/256 bits)
> Jul  7 10:01:11 scz postfix/smtpd[16260]: 3FFBD4D8300: client=
> host-65-173-60-214.acelerate.net[65.173.60.214], sasl_method=LOGIN,
> sasl_username=ggarron
> ________________________________________________________
> 
> after that is all ok, it is the same as if i configure my thunderbird to 
> use
> that server, with authentication
> now loggin as root these are the results.
> 
> -----------------------Jul  7 10:04:02 scz postfix/smtpd[16275]: connect
> from host-65-173-60-214.acelerate.net[65.173.60.214]
> Jul  7 10:04:02 scz postfix/smtpd[16275]: setting up TLS connection from
> host-65-173-60-214.acelerate.net[65.173.60.214]
> Jul  7 10:04:03 scz postfix/smtpd[16275]: TLS connection established from
> host-65-173-60-214.acelerate.net[65.173.60.214]: TLSv1 with cipher
> DHE-RSA-AES256-SHA (256/256 bits)
> Jul  7 10:04:06 scz postfix/smtpd[16275]: NOQUEUE: reject: RCPT from
> host-65-173-60-214.acelerate.net[65.173.60.214]: 450 
> <root at t30.alketech.com>:
> Sender address rejected: Domain not found; from=<root at t30.alketech.com> 
> to=<
> anyuser at yahoo.com> proto=ESMTP helo=<t30.alketech.com>
> Jul  7 10:04:07 scz postfix/smtpd[16275]: disconnect from
> host-65-173-60-214.acelerate.net[65.173.60.214]
> ----------------------------------------
> As you can see now it does not authenticate as my user on that server, and
> is not uses SASL method, not even trying to login
> 
> can anybody help me please?

You could try removing:

EXPOSED_USER(`root')dnl

from your sendmail.mc, rebuild sendmail.cf and restart sendmail.

Or you could use a genericstable entry to get root's email address 
rewritten as yours on the way out.

Paul.