SUMMARY Google require app verification to allow OAuth2 to succeed. STEPS TO REPRODUCE 1. Open KMail 2. Configure IMAP/SMTP account with imap.gmail.com/smtp.gmail.com 3. Enter your GMail credentials. OBSERVED RESULT Error message "login for this app is temporary disabled." EXPECTED RESULT Successful login and retrieval of GMail messages. SOFTWARE/OS VERSIONS Operating System: Debian GNU/Linux 10 KDE Plasma Version: 5.14.5 Qt Version: 5.11.3 KDE Frameworks Version: 5.54.0 Kernel Version: 4.19.0-5-amd64 OS Type: 64-bit Processors: 8 × Intel® Core™ i7-4790 CPU @ 3.60GHz Memory: 15.5 GiB of RAM ADDITIONAL INFORMATION
*** This bug has been marked as a duplicate of bug 404990 ***