Hi, I recently set up TB with one imap account. All fine. I set up a Local Folder as well - mainly to store bulk of old mails. Then after couple of days, when I sent a message, the system warned me: "your message was sent, but a copy could not be placed in "Sent" folder" due to network or file access issues. Place a copy in local folder instead?" I recognized, that also, while my account/server seems to connect, no emails at all are fetched from the server actually. I think there's a strange problem TB internally with ... file access? How to repair? UPDATE : I checked my TB profile folder, and found the "ImapMail" folder's properties (Win10) showed "read-only". So I closed TB, removed the "read-only" from folder and contents, and restarted TB. But issue persisted. I went back to "ImapMail" folder in my profile - and found it marked "read-only" again. So seems TB itself set it to "read-only", it seems. Thank you for your advice. Chris PS: * Restart : nothing changed * run in safe mode: nothing chnaged * repaired folders: nothing chnaged