[ May I ask you to capitalise your "I"s? That is, aside from
inadvertent
typos or honest mistakes, stick to standard US or UK (pick one)
English
orthography? ]
I'm sorry, it's just my personal twist using little i's. If my suicide
note has capital I's you know I didn't write it :) Out of everyone on
the internet inventing new slang and sick words that make you go yeet
all day long, I assumed my I's would be non impactful to peoples
delicacies. But I will make an effort to use big I's not to offend you.
The disconnect message shows the full story with "mail=2", "rset=3",
...
the sending system is doing connection caching.
So I watched the sending server more closely in verbose mode and now I
see it, I understand. For some reason sendmail is trying to send the
same message twice, once with and once without a From: address. I also
saw that sendmail ignores the rcpt reject and continues with the data
command. Bad bot.
And thanks for the initial issue of figuring out I had
smtpd_reject_unlisted_sender incorrectly set. Im done with this issue.