In Thunderbird, I get an error message coming from a server I didn't set up.
The error message is
"Timeout occured retrieving data from imap.tset.com."
I searched through each and every account in Thunderbird settings, but I just don't see any reference to it.
How could I debug where this server setting might be stored within Thunderbird if it isn't accessible via the settings menu?
tset.com
is apparently for sale, so has nothing. The reference might rather be in some email you are receiving and not from an email account.