setting up auth - sendmail relays anything?

[anorakgirl]

hi,
i'm trying to het auth set up on sendmail. i've followed the distructions here:

http://www.joreybump.com/code/howto/smtpauth.html

but sendmail still seems to relay anything i.e if i send a mail from outlook with my server set as the smtp server, it sends even if i don't tick the box marked "my server requires authentication".

in my sendmail.mc i have the lines:
define(`confAUTH_OPTIONS', `A y')dnl
TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')
there is nothing in my access or relay-domains files.
i'm not sure where else to check for what is allowing relaying. any help appreciated!


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http://www.anorakgirl.co.uk

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[RhythmAce]

Did you run the m4 macro compiler after you edited sendmail.mc?

m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

You must also restart sendmail so it reads the new sendmail.cf

 

[anorakgirl]

yep did all that...

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http://www.anorakgirl.co.uk

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[Rhinokiller]

Your access file must have at least an entry like the following

localhost RELAY
localhost.localdomain RELAY
12.34.56.789 RELAY
(12.34.56.789 = the "source" address of all your mail - dmz nic / server nic)

Your relay-domains file should look something like this
hostname (your mail servers host name)
mydomain.com (the primary domain you wish to route mail for)
{All other domains you wish to relay for should be included here too}

And depending on the version of Sendmail / the OS you are running you may need the following (see sendmail.cw) local-hosts-names file
mydomain.com
mail.mydomain.com
12.34.56.789 (see above - this will stop sendmail flagging mismatched DNS lookups with "may be forged&quot

You will also need to include your server nic address and or your dmz nic address in your regular hosts file.

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