-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 In message <1ab921c3-9ebd-4e81-8d19-c3772b02d...@dcrocker.net>, Dave Crocker <d...@dcrocker.net> writes
>On 3/6/2025 5:07 AM, Richard Clayton wrote: >> Yesterday (Wednesday) at $DAYJOB the percentage of mail delivered to a >> single recipient (rather than 2 or more) was 99.8566% (I feel justified >> in providing the precision because the total count was many billions) > >For that service, is that percentage for mail coming into it, or mail going >out >from it? If both, what's the percent coming in. it was solely for incoming mail (but will include email sent from one user of the platform to another) >> I also note that the chances of email being automatically classified as >> spam increases with the number of recipients ... it doubles by the time >> the number of recipients reaches 10. > >One of the challenges in this sort of statistical analysis is distinguishing >between pure correlation, versus factors that actually are inherent properties >of problematic mail. Agreed, but I don't believe that the machine learning specifically takes account of the number of recipients ... in fact it's likely that classification will be more accurate for N events (rather than 1 event with N recipients) because the N events will take longer and hence a pattern is more likely to be discerned. I think the reason for the increase in the likelihood of multiple recipient mail being spam is because mailing lists (which are probably mainly good email) are rare compared with spammers who have sorted their address lists by domain ... - -- 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 -----BEGIN PGP SIGNATURE----- Version: PGPsdk version 1.7.1 iQA/AwUBZ8mk/2HfC/FfW545EQJTaACffkoH0hWj54rVzgP/nbmPhYEYACMAniJ8 2PUtcVTxf7J7cgPoDranO9xB =qQcn -----END PGP SIGNATURE----- _______________________________________________ Ietf-dkim mailing list -- ietf-dkim@ietf.org To unsubscribe send an email to ietf-dkim-le...@ietf.org
