Thunderbird (Lightning) v60.0 doesn't send email invitations

Felix Almeida shared this problem 2 months ago

The new Thunderbird version 60.0 (Linux 64-bit) finally has a feature for sending email invitations when a new event is created in a CalDAV calendar (like

However, even when the "prefer client-side email scheduling" property is enabled on my calendar, no email invitation is sent when I create a new event:

Please, would anyone know what is wrong? Is it a bug? If so, is it in Thunderbird or on's side?

Thank you!