I would recommend that we either strike the statement or leave as is.
The problem I have with the original sender's email address is that I
now have to inspect EVERY email 821,822,and MIME to look for CRI
headers. That sucks.
For CR, your statement makes sense...for CRI...it does not.
"For CRI systems that issue challenge messages, it is also recommended
that each CRI system use the original sender's email address for
challenges to reduce unecessary overhead."
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