[BlueOnyx:21318] SPF, DKIM & DMARC

[Lewis Gardner]

I'm struggling on how to set up these records for domains hosted on a 
5209R server.

The SPF record looks fairly straightforward. Make a TXT DNS entry with 
some test.

DKIM appears to need a 1024 bit RSA key. Where do I get this? I assume 
there I need one per domain so a server may have several?

DMARC appears to be like SPF in that it is another TXT DNS entry.

Personally I think most of this is lipstick on a pig in that these 
methods appear to be attempts to make something secure that is 
inherently not. But I'm not in charge...

Any pointers?