Hello, I have a strange behaviour on my Thunderbird Calendar and I would like to avoid to create a new clean profile, if possible, since I have several plugin, filter, customization of TB. I have a main email and several calendars CalDAV with a setting of the calendar (right click, propriety, email) correct with the mail one. When I create ANY event, the first email that appear in the list is of an ALIAS I have created a long time ago and I cannot find the parameter to remove it. The strange thing is that even if I remove it or not, the others do not see this email as participant. So, even if it is not affecting the functionality of TB Calendar, I am looking for a solution to remove it. I've tried to look in the advanced settings without success. Any suggestion? Thanks Marco