On Thu, 14 Aug 2008, Ronnie Gilkey wrote:

> giving me some trouble.  Currently sendmail will allow: a) relaying for
> a mailbox on any local domain without authentication, and b) to anyone
> if the sender is authenticated.  I would like to remove the rights given
> in (a).  This would force authentication even if the recipient is for a
> locally hosted domain.

I'm confused why you don't want to relay for a local domain.  Is this an 
Internet-facing or internal SMTP server?

Sendmail shouldn't relay anything by default.  In addition to the access 
map, do you have a RELAY_DOMAIN or RELAY_DOMAIN_FILE set?  Sometimes they 
are /etc/mail/local-host-names and /etc/mail/relay-domains.  If nothing 
there, still check class R manually (run sendmail -bt, then type $=R).
Using any FEATURE's that mention relaying?

I'm guessing you went through the ANTI-SPAM CONFIGURATION CONTROL section 
in the Sendmail config guide already.  It goes over the relay FEATURES.
http://www.sendmail.org/documentation/configurationReadme

ray
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Ray DeJean                                       http://www.r-a-y.org
Systems Engineer                    Southeastern Louisiana University
IBM Certified Specialist              AIX Administration, AIX Support
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