[dkim-ops] Re[2]: DKIM seems complicated

[Jerry Martin]

Hello again:

I would, first of all, like to thank everyone who has responded for their timely and thoughtful replies.

I the information I have been given is certainly helpful, however I am still left with a couple of concerns.

It has been suggested that multiple "selectors" can be utilized in order to accomplish a number of feats. I'm wondering about how, specifically, to post these multiple selectors to the single IN TXT DNS record.

This has also raised concerns about exactly how much data can be posted to this DNS record. Can DKIM and SPF co-exist in this record? If so, can you provide an example of how to formulate such a record?

Doesn't this create a bunch of extra over-head for the DNS server?

With regards to DKIM failures; if they are rejected, can/will the sender be notified?

If DKIM indicats tampering, rathar than complete forgery, are these messages treated differently? Can the sender and receiver be warned in the case of tampering?

Thanks,

Jerry