* Daniel Taylor:
Yes, my example misses the point. I need something which actually
requires a change in the published SPF record.
On the contrary, since you have an example of something which
does not require a change in the SPF record it can be converted
into a positive example of how to write a DNS lag tolerant SPF
record.
The DNS record is tolerant to one particular change, not necessary to
all changes. 8-)
And the SPF/TXT consistency issue also raised by Mark remains.