CentOS - Oct 2005 - Sendmail Config Question

Hi

Default sendmail setup on a centos4.1 box - I need to send report type 
mails from this machine under cron. The SMTP relay i need to use 
requires user/pass so how can i send user/pass smtp auth from within the 
'default' sendmail install? Anyone know what to change in sendmail.mc

thanks

Try adding these to your sendmail.mc and recompile sendmail.cf

define(`confAUTH_OPTIONS', `A')dnl
TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
define(`confAUTH_MECHANISMS', `DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl


Tom Brown wrote:
> Hi
>
> Default sendmail setup on a centos4.1 box - I need to send report type 
> mails from this machine under cron. The SMTP relay i need to use 
> requires user/pass so how can i send user/pass smtp auth from within 
> the 'default' sendmail install? Anyone know what to change in
sendmail.mc
>
> thanks
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos

Ok,

my previous email shows how to add auth to your relay.  This is a bit 
different to what you asked for --- sorry

P.


Tom Brown wrote:
> Hi
>
> Default sendmail setup on a centos4.1 box - I need to send report type 
> mails from this machine under cron. The SMTP relay i need to use 
> requires user/pass so how can i send user/pass smtp auth from within 
> the 'default' sendmail install? Anyone know what to change in
sendmail.mc
>
> thanks
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos

Quoting Tom Brown <tom.brown at goodtechnology.com>:
> Hi
>
> Default sendmail setup on a centos4.1 box - I need to send report 
> type mails from this machine under cron. The SMTP relay i need to use 
> requires user/pass so how can i send user/pass smtp auth from within 
> the 'default' sendmail install? Anyone know what to change in 
> sendmail.mc
Two possible workarounds that I can think of.

Use Kerberos to authenticate local sendmail service to remote sendmail (by
generating keytab entry in /etc/krb5.keytab).  This is something you might try
if you already use Kerberos to authenticate users.  Might work (never 
attempted
it myself).

Use X.509 certificates to authenticate one sendmail to the other during
STARTTLS.  Create your own certificate authority (CA), and sign certificates
using your own CA.  Install certificates (including your CA certificate) into
sendmail.  Then in /etc/mail/access file allow relaying from client's DN or
simply from any DN that was signed by your CA.  See STARTTLS section of
/usr/share/sendmail-cf/README file for details (part of sendmail-cf RPM).

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On Tue, 18 Oct 2005, Tom Brown wrote:
> Default sendmail setup on a centos4.1 box - I need to send report 
> type mails from this machine under cron. The SMTP relay i need to 
> use requires user/pass so how can i send user/pass smtp auth from 
> within the 'default' sendmail install? Anyone know what to change
in
> sendmail.mc
Are you in a position to change the settings on the relay host? If so, 
just add a RELAY or OK line into the relay host's access.db (or its 
moral equivalent).

Otherwise, see Benji Fisher's notes on automating client 
authentication in sendmail:

   http://www.sendmail.org/~ca/email/auth.html#smtpclient

-- 
Paul Heinlein <> heinlein at madboa.com <> www.madboa.com