John R Levine wrote:
If specific nodes do get
overloaded, SPF and Sender-ID both let you use a short record pointing
to a longer record somewhere else as a band-aid.
That's a fine workaround, but even *those* records will get caught by
wildcards. Wildcards won't work.
I don't see how repeating this claim makes it any more persuasive. All
the records I know about can use the short pointer band-aid, and it looks
easy enough to have five or six band-aid records and still fit in a UDP
packet. What am I missing? I realize that a hundred TXT records won't
fit, but I don't see more than about four TXT record applications showing
up any time soon.
If Sender-ID sucessfully uses a combination of TXT records and new RR
type, then other new protocols may follow the same advice. That can
quickly add up.
Yakov