Thunderbird Support Forum

My internet provider in Phoenix, Cox, has now handed its email services over to Yahoo. Prior to this, I accessed my Cox email (@cox.net) using Thunderbird. I am a technological dinosaur and am trying to figure out how to migrate my new Yahoo email to Thunderbird. I had a friend set up my Cox mail in Thunderbird but he is not available now. I am clueless how migrate my Yahoo mail to Thunderbird. I appreciate any help that the community can give me.

Over the last few weeks, emails have vanished from my inbox, as well as trash, templates and other mail boxes. In may cases, no emails are being displayed, when "total message count" shows messages are present. In other cases, several days of recent messages have disappeared.

I have tried "repair folders," deleting "smart mailboxes' and even deleting the .mlf file of one inbox without success.

I have 6 email accounts including 2 GMail. The problem is in all of them. As the screenshot shows, there is a disparity between total messages and displayed messages in all boxes (partial view of accounts).

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I have just done a clean install of the latest Thunderbird on Mac, and connected via IMAP to a pre-existing (although admittedly very large) mailbox.

My problem is that every single message apart from the ones received today shows a date that is wrong by nearly 600 years for both the Date and Received columns: e.g. from the year 1403 instead of the year 2024.

I am attaching two screenshots, the first shows a message received today that shows correctly (I am UTC+1, so 00:29 is correct). The second shows a message received an hour earlier where the date and received columns show 13/02/1403 at 23:30 instead of the correct value that appears in the Date header of the message of 02/05/2024 (all dates in DD/MM/YYYY because of my locale).

Does anybody know what is causing this? When I try connecting with other IMAP mail clients such as Outlook/Mac or K9/Andoid I do not see any problem with the displayed dates.

Since the update TB to v115.10.1 it will not connect to server, the server just times out.

BUT If I then login to the server directly from browser and check mail (IMAP by the way) using my web online interface I get emails THEN if I open TB it connects and downloads as it should.

This is weird. It's been checking more than a dozen email accounts for a number of years without errors.

The height of the viewing panel for emails is far too small. I can only see a couple of lines of text at the most and am unable to reduce the height of the incoming list of emails as previously in order to increase the height of the viewing panel. I have been helped to increase the font size of the overall layout so that I can now read it better but the green button to declare that my problem has been solved tells me that the page isn't working!