Configuring preferences and options in Outlook on the web for business
Terry,
Novice here, but I wonder if this answers your Q. When you hover your mouse pointer over an in-coming e-mail several icons appear - flag, pin, trash and ENVELOPE.
The ENVELOPE symbol is for "Mark as Read". Long-shot guess but I wonder if the intent was to replace "double-clicking and closing" with the single-step ENVELOPE ICON.
I also feel like the feature is "missing", but maybe it's designed a little differently and could take some getting used to.
Hope this helps.
