ietf-dkim
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Re: [ietf-dkim] DKIM Key Size Constraints

2015-05-12 11:55:01

John R. Levine:

The only problem I'm aware of is the 512 byte UDP DNS packet size.  Is
anyone aware of actual stats on how often larger packets fail?

for that reason I started using 4096 bit dkim keys years ago.
but message modifications are the only relevant reason of broken dkim  
sigs here.

Andreas

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