create EXIM based DKIM email relay
Hi everyone.
I have a hosted Exchange server and some of the my end clients on the exchange want to use DKIM.
Since I know that Exchange doesn't naively support DKIM, and since installing 3rd party software on the Exchange isn't an option due to reasons I won't go into, I'm trying to create a Debian Server and install Exim on it which will work as relay (I'll create a new send connector on the exchange and only send the domains who want DKIM through that connector).
I do have several questions...
Following several guides like this and this I know how to (in a very basic form) install Exim on Debian and enable DKIM on it.
What I would like to know is this:
1) Can I somehow limit which Domains Exim will agree to relay for and which he will not (So that I can control through the relay itself what client will be suing and which won't)
2) Can I create different relaying rules so that Exim will apply a different DKIM private key to each domain?
a snippet of a config will be greatly appriciated.
Thanks a lot
I have a hosted Exchange server and some of the my end clients on the exchange want to use DKIM.
Since I know that Exchange doesn't naively support DKIM, and since installing 3rd party software on the Exchange isn't an option due to reasons I won't go into, I'm trying to create a Debian Server and install Exim on it which will work as relay (I'll create a new send connector on the exchange and only send the domains who want DKIM through that connector).
I do have several questions...
Following several guides like this and this I know how to (in a very basic form) install Exim on Debian and enable DKIM on it.
What I would like to know is this:
1) Can I somehow limit which Domains Exim will agree to relay for and which he will not (So that I can control through the relay itself what client will be suing and which won't)
2) Can I create different relaying rules so that Exim will apply a different DKIM private key to each domain?
a snippet of a config will be greatly appriciated.
Thanks a lot
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Thanks for the help