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Thunderbird 52.9.1 32b has started immediately deleting junk mail on one single account

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  • Last reply by DerekHF

I have multiple accounts set up. In the past couple of weeks, emails marked as junk - either automatically or manually - appear briefly in the junk folder and are then immediately deleted. This only happens for a single account, all the rest behave normally. The account option "Automatically delete junk mail older than" is unchecked. The Global junk option "When I mark messages as junk" is checked and the sub-option "Move them to the account's Junk Folder" is selected. This is an IMAP account - as are all the other working accounts. I have removed the account and added it in again but it still has the same behaviour.

I'm fresh out of ideas, so I'd appreciate any help.

I have multiple accounts set up. In the past couple of weeks, emails marked as junk - either automatically or manually - appear briefly in the junk folder and are then immediately deleted. This only happens for a single account, all the rest behave normally. The account option "Automatically delete junk mail older than" is unchecked. The Global junk option "When I mark messages as junk" is checked and the sub-option "Move them to the account's Junk Folder" is selected. This is an IMAP account - as are all the other working accounts. I have removed the account and added it in again but it still has the same behaviour. I'm fresh out of ideas, so I'd appreciate any help.

All Replies (4)

is ths problem account on a different mail domain/server?

It may be the server admin has set the mail server to immediately delete "junk" or in the case of Yahoo they are deciding it should be in their bulk mail folder. Because when they decide is is spam that is where they put it and nothing you can do will change that.

Other accounts are on the same domain and server - all hosted by Rackspace. If I close Thunderbird and use the webmail interface to Rackspace, nothing gets deleted. In fact spam filtered by the rackspace filters doesn't even get deleted by Thunderbird, so it seems the problem only happens when Thunderbird actually moves the mail. I've also tried setting the account up in Outlook - no problems, behaves normally, but I really dislike Outlook.

Do you have filters on the account? that is one additional source of odd happenings when the logic in them is not quite right. Like delete instead of mark as junk.

Rackspace as I understand it are all Microsoft Exchange. is the "junk folder showing up as the Thunderbird junk folder name or the exchange Spam folder name. We might have a mismatch.

Thanks Matt,

I do have filters set, however they have been working for a few years. My Thunderbird at home is exactly the same set up with the same filters and all accounts work fine. I'll try removing them and see what happens.

There is a mismatch between the "junk" folder on Thunderbird and the "spam" folder on rackspace, but this has also been the case for years - and is also the case for the other accounts that work. When I reinstalled the account, I pointed Thunderbird to the rackspace spam folder, but exactly the same result.

I'll try doing a full reinstall of Thunderbird and see if the problem goes away. It's a puzzle!