1/ what are differences betwen these 2 backends : EWS and
microsoft365 (graph, mapi, owa…)
Those are just different protocols, to access the same data. They work
differently, because they are not feature complete (the feature parity
between the two protocols is lacking some parts). You, as a user,
should not be bothered by the differences, apart of knowing which to
use when.
The wiki page moved to the:
The archived page you referenced has the very same link near the top of
the content, in a big gray rectangle, telling in bold “This page moved
to GitLab Wiki space…”. I guess you overlooked it. That’s okay.
2/ what with my needs ?
i need reply indicator first
I’m sorry, but I’m not sure what you are talking about. Could you be
more specific, please? Like to tell where precisely you see something
with EWS, but not with M365.
If you mean the “replied” icon in the message list, then I can see
these in the M365 account too (see the attachment), though I do not
recall whether I replied within this M365 account or by different
means.
last date+hour then if possible
I do not know what you mean with this, I’m sorry.
You also mentioned shared calendars in the bug. With EWS you can add
them one-by-one with File->“Subscribe to folder of other EWS user…”
menu option.
