Komunitné fórum Thunderbird

Since update to version 145.0 I cannot send messages, when sending I get this message "Sending of the message failed. An error occurred while sending mail. The mail server responded: <*******@shaw.ca> sender rejected AUP#POL. Please verify that your email address is correct in your account settings and try again". Nothing has changed with account settings. Same problem on another machine that updated to 145.0. Any ideas what is broken?

HI just updated to 140.5.0esr (64-bit) Now all I can see is my inbox and deleted. No Sent or any of the other many folders I could see 5 mins ago ☹️. The server has them all though Some help welcomed!

My Thunderbird has behaved very well for a decade or more. No issues and still the same. My question relates to the delete function. When I press delete I get a warning of a delete email with a chance to go back. I changed this to see what happens and now I cannot find how to return to second chance as this works best for me. Possibly simple but how? regards Replytree