Nothing specific happened, no update, no nothing but for a few weeks now I dont recieve Mails anymore. I tested it and sent myself an E-Mail from another account to my actual account but it does not arrive. I also reinstalled Thunderbird but it didn´t help. I checked my domain which is provided by Strato and on their website I can see my latest mails that I don´t see on Thunderbird. Maybe someone knows what the error is. On the image is the thing shown in the bottom left corner after I refreshed my mails. On the account from my brother it shows "No new messages" but mine is stuck on that on the picture.