In message <e90a17a051f46241bbfccb6423d64c637a47b807.ca...@fiebig.nl>, Tobias Fiebig via mailop <mailop@mailop.org> writes
>My point here is, that 'deliverability' is often more of a priority for >ESPs than 'following all documents to the letter'. Granted, for the >bigger ones, usually more like 'outbound deliverability' than 'inbound >deliverability', though. > >Hence, I am not completely sure if the stance is outright unreasonable, >even if it disagrees with the documents. If you send an encoded DKIM header field then it is rather unlikely that large mailbox providers will parse it correctly (I don't think they run rpamd) or indeed at all. Failure to get a "DKIM pass" may well mean that "no auth no entry" (recall that 1 Feb was a while back) will kick in and your deliverability will be zero. The likelihood of getting an error message that illuminates the (rather obscure) cause of the deliverability failure is zero. Recall that the first thing Postel said was "be conservative in what you send". BTW: RFC2047 encoding the bit in the angle brackets in the RFC5322 From (which a non-zero number of senders were doing, last I looked at $DAYJOB$ data) will also mean no deliverability (albeit some of the error messages you get for that may lead you to your formatting problem relatively quickly). -- richard Richard Clayton Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. Benjamin Franklin 11 Nov 1755
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