On Tue, 12 Jan 2016 02:01:24 +0100 KA <soldes at gmx.fr> wrote: > Since I started to use vCalendar, I have a major performance issue. > > Symptom : > Launching Claws-Mail takes 10 real seconds more. Probably this bug: http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=2546 with regards Paul