>Can anyone remember why there's a SHOULD for the downgrade to 7-bit in >RFC4871 Section 5.3, rather than a MUST? The likelihood of breakage is >so high when sending 8-bit data that DKIM almost becomes pointless >without the upgrade.
I think Pete's analysis is correct, but my advice would be to take it out altogether. We don't have any great insight into the warts of what paths are likely to downcode a message and what paths aren't, so I would prefer not to purport to offer advice about it. R's, John _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
