Since upgrading from 4.9 to 5.1, I am getting a lot of false positives with spamd running in greylisting mode, from email addresses I previously did not.
A number of false negatives are still getting through, too. Eg: I needed to add lists.openbsd.org to /etc/mail/nospamd to receive messages from this list, or spamdb would delete the messages. How can I tune this to make spamd more forgiving? The default -G options in spamd(8) do not seem to be taking effect. I emailed someone yesterday, received a reply. Then today, they emailed me again from the same address and their messages were deleted by spamdb. What conditions cause an address to move from grey to white, or grey to black? Trying to get my head around this, and losing emails all the while.. .d.d.
