Hi Stephane
I mean this setting in SOGo.conf
ProxyPass /Microsoft-Server-ActiveSync \
http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync \
retry=60 connectiontimeout=5 timeout=3600
Don’t confuse sogo.conf with SOGo.conf.
Strange to have both the (almost) same names in the same directory
See also other posts on this forum with the setting : timeout=3600