Integrate the possibility to use image-files (such as: gif, png or jpg) for labeling as footer, header or watermark. The would be a great feature for some customers, so it is possible to support the corporate identity with specific colours and embedded graphics.

Need the possibility to have Policy Tips for DLP rules in multiple languages when created in Office 365 Security & Compliance (as you can do in Exchange Online Admin). The policy tip should match the language you have in Office. Now it's mixed with the static text in the Policy Tip and the custom text you have entered in the rule

Create a template that helps assist organizations to identify personal details within content and files. Suggestions would be to look at telephone number/post code/IP address/e-mail address/gender/NHS number etc.
If there could be auditing that shows where this data resides when identified and give central IT a means to track it, that would provide high value in remaining compliant and avoiding fines.

Microsoft has recently invested in Machine Learning technologies that can detect patterns and correlate different pieces of content. These are currently used for e-Discovery and other capabilities. Leveraging these capabilities to automatically classify content by correlating it with other pieces of protected content would provide more automatic classification, reduce false positives and lighten the load on administrators so they don't have to constantly update classification rules.

To be more visible, have the option to show the colour on the buttons all the time.

Products like ZIX are able to deliver a notification when someone reads the encrypted message they were sent.
Our Customer has requested this feature to be added in O365

Windows 10 Integration with sensitivity labels to classify and protect documents coming out of specific applications or saved to specific locations - making files classified and protected at creation based on the content and the context they have been created with

Update the encryption to 256 from 128 on all Office endpoints

We use DLP on email to assist in our PCI compliance. As an online payments provider, we often provide dummy credit card information to help our customers set up their APIs (typically 4444 3333 2222 1111). Unfortunately, despite this not being a valid card number, it triggers Microsoft's built in "Credit Card" definition resulting in 100s of false positives per week. We need to have this hard coded as an exception to the "Credit Card" definition, or, better yet, allow definitions to be customised and/or excluded from via. the Admin portal.

If we add disclaimer and having email conversation means, disclaimer is adding multiple times in the bottom of the email. It should add bottom of each email.

Make Outlook's recall feature functional on OME or IRM-enabled emails.

Neither the classification bar, nor the Protect menu seem to be accessible today via key stroke only. Some customer scenarios still include PCs without a mouse. Instead of requiring mouse to apply a non-default label, it would be nice to make labels available via key strokes.

Enable Outlook to apply an existing S/MIME certificate based on a sensitivity label (as is already available on the AIP client).

Today, when a CSV is protected we protect it as .csv.pfile. This is an ask to natively support CSV files with .pcsv

Please add in the option to reply in mail rules.

It would be cool to have AI in the Background that learns from already classified Documents of one Department or Businessline how critical expressions are related to each other and lead into a certain classification. With this AI-Knowledge the System would be able to recommend or auto-classify new or not yet classified old Files in the right way. This would lead into less manual confiured sensitifity types.
Focus of this idea should be the improvement of the recommendations in a first step without the need of manual configuration.

Allow for a configurable prefix or suffix to be added to the subject line of an Outlook message. For example - my message subject is "Testing" when I classify this as Confidential the subject line becomes "Testing [C]" adding in an abbreviated form of the classification for quick reference and visibility in the inbox.

Different people have different needs for the default label depending on their day to day job.( working in finance : default = confidential ; working in external communication default = unrestricted)

We liked that users can choose the better appropriate default label . If not possible apply default label to scoped policy (so to users groups).