Auth and noauth sendmail
Smoot Carl-Mitchell
smoot at tic.com
Thu Aug 23 03:45:44 UTC 2007
On Wed, 2007-08-22 at 20:37 -0300, Sergio Belkin wrote:
> Hi community
> I have an authenticated sendmail. I want to modifiy it in order to:
> *All mail sent to mydomain.com is not authenticated
> *All mail sent to any domain different as mydomain.com be authenticated
> (TLS included).
>
> How can I do that? (I don't refer to complete procedure, but how can I do
> to "separate" mail by its destination) I was looking at access and
> mailtertable
> but it
> seems that those files don't help me.
You set it up in the access file (/etc/mail/access). Something like:
CERTISSUER:/C=US/ST=AZ/L=Scottsdale/O=TIC/CN=TIC/emailAddress=tic at tic.com RELAY
This says a client cert signed by the issuer can relay mail. Most email
clients support this sort of authentication. As you can see, I created a
private signing certificate and then signed client certs for the users I
wish to allow relaying to my mail server. There are a number of HOWTOs
out on the net explaining the nitty-gritty details. Your sendmail server
must support SMTP-AUTH to get this to work.
--
Smoot Carl-Mitchell
System/Network Architect
email: smoot at tic.com
cell: +1 602 421 9005
home: +1 480 922 7313
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