[OpenIndiana-discuss] Qmail-to-go on openindiana?
netadmin at lex-sa.cu
Thu Apr 26 15:54:14 UTC 2012
Thread name: "Re: [OpenIndiana-discuss] Qmail-to-go on openindiana?"
Mail number: 33
Date: Thu, Apr 26, 2012
In reply to: Gary Gendel <gary at genashor.com>
> Chris, I'm still unclear on how to do this. How could you write a
> regular express to check to see if the connecting ip address is
> buried in the reverse dns lookup.
> In my example, spamdyke would reject
> customer.208.001_48.3.sample.com, but
> customer.108.001_48.3.sample.com would not be rejected because it
> doesn't match the ip address of the sending MTA. This prevents
> rejecting reverse dns names with strings of arbitrary numbers in
Gary, is very simple, is maked, you don have to do nothing, just tell
postfix "do this"
add this to you main.cf
Postfix will make a reverse lookup and if the domain not found, it will
not allow get the mail.
Also you can tell postfix who request to the remote server if that
sender is a valid user, if it not exist i the remote server, the mail
will not pass.
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