Hi Scott, On Sat, Nov 30, 2024 at 2:10 AM Scott Q. <qm...@top-consulting.net> wrote:
> I see this thread is getting quite personal, but if I may comment on > something you wrote. > > >> I more or less said that, you are a mail administrator yes? then you > know bloody damn well that 99% of spam checks are carried out after > reception of the mail > > depends what you define by reception. We perform spam checks on the DATA > portion of the mail reception and can refuse a message in that segment. > Therefore, spam check is done on the message before accepting it. > > TLDR: reasonableness for testing in DATA depends on your traffic levels LV: I understand some small players may do this, however most don't, In my "part-time contractor role" outside of my day-job, nearly everyone uses postfix/amavisd/dovecot in the years I've seen nearly none of them use milters to test they accept it then hand it off to spamassassin via amavisd, even of the couple of exim installs I've worked on, only one used a weird integration that tested in DATA, but as a small law firm they weren't high traffic so can do that. In my regular day-job role as network administrator for a ISP, and 2 other ISP's over past 16 years, none have done this, these ISP's are in Asia and U.S., if a message is accepted it then passed on to anti spam measures, including current employer who operates 14 inbound MX's alone, they are no gmail or outlook but are high traffic where each inbound machine processes around 360 connections per minute, you do the sums on the amount of delays that will incrementally occur testing in DATA to still deliver mail in reasonable time after received, won't take long before those machines are to be running way behind and trigger Hi-Q alerts. Loz _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org
