This was available with Lync 2010/OWA integration, but Lync 2013 integration requires manually editing the web.config in Exchange.
Outlook Web App
Request to have public folders automatically displayed in OWA based on user's permission settings instead of manually having to add as favorites.
We would like more of our users to be using OWA instead of the full Outlook client but there are a few things missing in OWA. Setting OWA as the default mail client is one of them so that when a user clicks on a mailto: link on a webpage it will allow them to sign in to their OWA account and send the email instead of giving them the "there is no default mail client configured".
When you do a name search in an address book you MUST press the enter key or click the magnifying glass icon. It doesn’t search “real time” like the client does
There is currently only one signature option available
Currently the default is conversation view for all folders in OWA. Very few of our staff use that view on a daily basis and we should be able to configure the default to be the normal view.
This feature has already existed in the exchange CU5 2013.
It's really distressing not to have a global search engine
In the new Outlook on the Web in Exchange Online and Exchange 2016 reading pane includes an action button with a text and a drop-down list. The text and default action is Reply All. Suggestion to change that to Reply to prevent people from using Reply all by accident.
Since the Plain-Text is security way to avoid some hackers attack or viruses , OWA should provide a function for admin to set a force policy to let OWA users to view emails in plain-text mode, like Google and Yahoo mail do.
The customer complains that Exchange Server Outlook Web Access Page, the default rule options in OWA, mail redirection is the first option so it misleads the end user to choose incorrect option for mail forwarding.
The ability to recall messages (which doesn't always work but at least they could try).
Autofill only populates if you have sent them email from webmail (not from the client)