[cobalt-users] Re: whitelisting with sendmail.cf spamblocking config

[Bruce Timberlake <bruce@xxxxxxxxxx>]

> I recently implemented blacklists in my sendmail.cf.
> I've been 100% happy with it.  Everyday I block about 4000 messages out 
> of about 5500 total messages with this setup.
>
> Today I had my first request for a whitelist.
>
> My sendmail.cf spamblocking section looks like this:
>
> # DNS based IP address spam list bl.spamcop.net
> R$*                     $: $&{client_addr}
> R::ffff:$-.$-.$-.$-     $: <?> $(host $4.$3.$2.$1.bl.spamcop.net. $: OK $)
> R$-.$-.$-.$-            $: <?> $(host $4.$3.$2.$1.bl.spamcop.net. $: OK $)
> R<?>OK                  $: OKSOFAR
> R<?>$+                  $#error $@ 5.7.1 $: "Spam blocked from SpamCop"
>
> My question is, how to I whitelist an IP address?

Add it to /etc/mail/access:

ip.ad.re.ss<tab>OK

Note you can also do this with domains, email addresses, etc. Valid options 
are: OK, REJECT, RELAY, DENY, or a custom message. See 
http://www.sendmail.org/tips/relaying.html and read the section "The Access 
Database"

Then rebuild the hash file:

makemap hash /etc/mail/access.db < /etc/mail/access