AFAIK, this is best: http://www.memoryhole.net/qmail/#dkim
Thanks, but nothing in C? I have about 1M deliveries daily
and a shell+C+perl mixture is unfortunately not an option.
How many different messages? If you deliver a message to a thousand
people, it only needs to be signed once.
I do my DKIM signing with a QMAILQUEUE shim written in perl that signs
mail as it's submitted. Works well enough for me.
R's,
John
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