On 05/19/2011 07:20 PM, John Levine wrote: >> 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. >
Miracles... my implementation never bothered to worry about that SHOULD and I don't feel dirty about it in the least: it never made any difference that I could determine. This was mostly an academic piece of advice, IMO. Since dev managers literally looks at MUST's and SHOULD and ignore MAY's to determine what gets implemented, this is not quite as academic. Mike _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html