After updating Thunderbird Portable 78.10.0 (32 bit) to 78.12.0 I regularly get the error message "The server imap.gmx.de has dropped the connection. The server is either down or there are network problems.". I work with Win7 Prof. (32 bit). As soon as I install the version 78.10.0 again, the error is gone again. Therefore I suspect that the error is only caused by version 78.12.0. Therefore an update is excluded for me for the time being! Kind regards B. Schlösser Translated with www.DeepL.com/Translator (free version)