How do you train TBird to recognize senders as not junk? I've literally corrected dozens of emails from the same sender and they continue to be junked.
There must be a way to say "THIS sender is valid, always put messages from them to Inbox." Your instructions on how to do that do not work.
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Your instructions on how to do that do not work.
What instructions exactly?
1. Clicking the junk icon while the item is in the junk folder, then unclicking it to toggle it back and have it move to Inbox.
2. Physically moving junked emails from the junk folder to Inbox.
3. Labeling emails as "not junk" using the right-click menu.
All those things actually move the email to the Inbox, but never, ever cause subsequent emails from that sender to go to Inbox. This is weird; any decent client should be able to have you click on an email and permanently whitelist the sender.
Part of training the adaptive junk filter is to also mark good messages as 'Not Junk'. https://support.mozilla.org/en-US/kb/thunderbird-and-junk-spam-messages#w_tell-thunderbird-what-is-not-junk
any decent client should be able to have you click on an email and permanently whitelist the sender.
You can use the Address Book as a whitelist. https://support.mozilla.org/en-US/kb/thunderbird-and-junk-spam-messages#w_per-account-settings
Another possibility is that messages are moved to the Junk folder by the spam filter on the server before they are downloaded by Thunderbird. This assumes your account is IMAP. You may want to check with your email provider whether their filter can be trained as well.
Thanks for trying. I neglected to mention that I had also already added the senders to my Address Book. It has accomplished nothing. That approach, which I had also read, simply does not work.
As a last resort you may try to reset the training data of the adaptive junk filter. Note, you'll have to start training the filter from scratch, and initially good messages may get classified as junk. As said before, it also helps to mark good messages as 'Not Junk', but I guess you know the drill by now.
At the top right of the Thunderbird window, click the menu button > Preferences > Privacy & Security > Junk Press 'Reset Training Data'.
OK. But how do I "train" for a given sender? My basic question is this. Why does Thunderbird not simply whitelist a sender immediately, the first time I declare a message as "not junk"?
It makes no sense to me that I should need to do that repeatedly. Once ought to be enough. Isn't that intuitive?
re : Why does Thunderbird not simply whitelist a sender immediately, the first time I declare a message as "not junk"?
The sender must be in one of the address books you selected as whitelist. The training takes a little while because you are teaching it what is and what is not junk. It needs to get several various messages so it can work out the pattern used.
In 'Junk Settings' - It is advised you do not select ' Trust junk mail headers by eg: Spamassassin' because if the email gets spam score then Thunderbird will put in Junk everytime.
In the case of Imap accounts - If the server decides it is spam and put's it into the 'Spam' folder, then Thunderbird is not controlling it. You would need to access webmail account and set up to not put X person in Spam.