On 08/04/2022 12:31, Bev Nicolson wrote:

I subscribed to a mailing list and was getting emails from the company in my inbox. Now, however, despite having the address in my contacts list, and despite not having any kind of filter on their address, all their emails go straight to the deleted folder for spam. What can I do about this? (I cannot tag them 'not spam', btw. They won't move. My only option at the moment appears to be forwarding the email to another address. It's a bit irritating.)

It depends on what's marking it as Spam.

Your mail gets to you something like this

Sender -> ISP -> {mailserver -> {spamfilter->} } thunderbird

The bits in {} are optional.  You may have some sort of mailserver/mail fetcher, but I doubt it.  If you have a mailserver, you may also have some sort of extra spam filter, but again, I doubt it.

I think it's most likely your ISP receives your mail, and it gets sent to or fetched by thunderbird.

Your ISP likely has a spam filter.  This could be marking the email as spam, or it could be deciding the email is spam and moving it to the "deleted items" folder before you download it.

If your ISP marks emails as Spam, thunderbird could be looking at the email headers, noticing it's flagged as spam, then moving it to the deleted items folder.  Alternatively, Thunderbird could be examining the emails and deciding that they're spam and deleting them for you.

I think it's a bit weird that the emails are going into the "deleted items" folder - mine end up in a "Junk" folder.  I also think it's a bit odd that you can't mark them as "not spam" - it works for me in all folders.

Some things I would try.

1)  If your ISP has a webmail portal, Close thunderbird and log on to the webmail.  See if the emails to the group are in the deleted items folder already, especially any new emails that Thunderbird hasn't seen yet.  If they are, then your ISP is shifting them.

2) In thunderbird, look for any spam rules, and any other rules that could be having an effect: In Edit/Account Settings/Junk Settings:

Is Enable adaptive junk mail controls on? (it is for me) Suggest ticking Do Not automatically mark mail as junk if sender is in Personal Address Book.

Is "Trust Junk Mail Headers set by" enabled and set to something?

What does Move new Junk messages to say? I'm guessing it's "Deleted Items" folder or similar.  Mine's set to "Junk folder on {my server}"

3) Then try pressing the "Global Junk Preferences" button (or alternatively go to it via Edit/Preferences/Privacy & Security/Junk.

I have These ticked: Enable adaptive junk filter logging. when I mark messages as junk:  Move them tot he account's "Junk" folder.

You could the log there using "Show Log" At a pinch, you could "Reset Training Data", but that would remove everything that Thunderbird has learned and start from scratch again.

4) View an email that's ended up in deleted items as spam.  Do View/Headers/All.  See if there's a Spam Score, or any sort of Spam flag and see if you can find out where that's come from.

5)  I think that Thunderbird has rules that let you automatically move emails to different places.  Have you done this and accidentally sent them to "deleted items"?

There's some things to have a look at!

Good luck!

Steve

PS I now only look at this group very occasionally so may not see replies for a while.