After years of using Thunderbird I decided to try KMail again. Installed, added private IMAP account and two work related GMail accounts. After "fetch mail" button press I got OAuth2 requests for both work related GMail accounts and mail got fetched. I read, remove, marked as important etc. All worked. Then I wanted to reply to an email. Wrote reply and pressed "Send". And then instead of just sending that mail I got "Enter SMTP password" requester... My GMail password would not work here so I did not gave it. "Application specific" passwords are disabled on work accounts. Do I have to go back to Thunderbird? System: Fedora 27 on x86-64. kf5-ksmtp-17.12.0-5.fc27.x86_64 kf5-kmailtransport-akonadi-17.12.0-1.fc27.x86_64 kf5-kmailtransport-17.12.0-1.fc27.x86_64 kmail-account-wizard-17.12.0-1.fc27.x86_64 kmail-17.12.0-1.fc27.x86_64 kmail-libs-17.12.0-1.fc27.x86_64
Same problem here, how can I send emails with gmail 2FA? " Less secure apps" is not an option anymore. Kmail _must_ support sending emails.
iirc 18.08 has it fixed but no idea when it will land in Fedora. Or was it planned for 18.12...
Applications 18.12 introduced support for OAuth/2FA support for Gmail SMTP.