"Good" mail going to Junk Mac Mail folder in error

I had the same issue. My email provider was marking the mail junk over riding what I did within Apple mail. I fixed the issue by looking at the mail on my server's web site and marking it as not junk then it was OK.

Two things to look at:

1) Any rules that you may have, that may wrongly classify something as spam

2) Whether the marking of something as spam may be done at the server - this would take precedence over existing contacts or local rules.

Same is happening to me. Good mail that should be going straight through and has in the past is now going to junk. No rules are interfering. I have disabled "Enable junk mail filtering." It's even sending mail the I have in my contacts to junk. I sure wish someone would help with this.

Thanks for the info. Long time ago I had to call Comcast so they would stop marking mail as junk and they said they did, but it's starting again. I will go online to my mail on Comcast and hopefully I can mark as not junk there. But it's confusing because in Apple Mail the message in the junk folder it says "Apple Mail thinks this message is junk," but that's not nessarily true.

Personification is a figure of speech 😎

Mail does not “think”. What this means is that the message was marked as junk for some reason. Two possible reasons are that the mail provider marked it as spam, or that algorithms inside Mail did it. Mail is not telling you which of two.