Hello, with my wife we're using thunderbird to manage our company mailings and so far with a few addons we had not problems until yesterday. We both use the same thunderbird version on pcs, we both log in to the same e-mail account with a few aliases. We both have quite a few folders with quite a few rules/filters to move messages to corresponding folders automatically. We both use the default gmail app on our phones for this account, though mostly to just read messages. Everything was okay, but yesterday thunderbird started to act weirdly - it wouldnt announce new mail incomming until you clicked on the some folder, then the mail suddenly appears as a unread message, sometimes hours later, for example we've missed a job offer because wife just wanted to check something in one of the folders and out of nowhere an 4 hours old mail appeared. Would appreciate any help. With regards.