Put automatic replies back in the settings drop down (rather than us now having to click on "view all settings") This is used often and should be easy to get to. You have made it more difficult, which makes no sense.

Preview PDF broken. The website freezes when ever I try to preview a PDF file.

Can we get delayed delivery in the browser based client please?

You're unable to re-arrange the order of calendars in a calendar group, and you're unable to re-arrange the order of calendar groups. The only way to "organize" this mess is to remove/delete and re-add the calendars/groups in the order you want. It's 2019, why are you making static lists. Be better, Microsoft.

It would be great if we could customize Suggested rooms to show the frequently-used meeting rooms when creating a new event in Outlook on the web.

User who has the edit permission can schedule duplicate item in the calendar with direct booking. I don’t want them to create duplicated items, so I would like to ask you to provide us a feature to block the duplicated item creation for direct booking.

I use the "schedule an email for later" feature in Outlook for iOS a lot, and would love to have it here as well. To me that is the killer feature that keeps me using Outlook for iOS.

Remove suggested files for the attachments. It does not work and takes up room.

I use four different email addresses and I want to be able to distinguish them.
By having From emailaddress visible,
not just To, Copy and Subject.
Now I need to double check which email I´m using.

+
Showing the true sender emailaddress
in my inbox, not just senders nickname and shortening. From my point of view the sender can call him/her self anything between heaven and ..., but by showing the real address I instantly know if its the right or fake person writing the message.

For DLP questions, some e-mails with certain attachment classification are being blocked, but, the e-mail is being saved on drafts, allowing to take the attachment from OWA.

I need an option to disable from saving e-mails that are not being sent on drafts

Note: I've already disabled "Automatically save items that have not been sent after this many minutes"

If we are able to set the number of days for the approval mails or the day for checking the expiration for approval, it will be convenient to manage and easy to use the approval mails.

1) It's hard to distinguish the difference between read and unread emails list panel with dark mode

2) The Sender, subject and content snippet are at the same level of brightness which clash together and make it hard to quickly differentiate. I would love to see the snippet become darker than the rest.

3) The white text is too strong in Dark mode, and needs the ability to customize the color and intensity of the text.

I would like to change the name of Directory in Contacts in Ootw.

Possibility to select an option so that every meeting you schedule in outlook is a Teams meeting and contains the information to join
This should be available for the user to configure but also for the admin to force for all users in the organization

Please allow customization of the dark mode of the custom theme.
The dark mode works for all built-in themes now. However, you cannot modify the dark mode of the custom theme. The "Customize Office 365 for your organization" page only shows settings for the regular/bright mode.

If I make Inbox subfolders and I defines rules to put corresponding emails into them, the Inbox does not report unread emails of subfolders if the Inbox directory is closed

When creating new meeting invitation in Outlook on the web, I believe that "Search for a room or location" is linked to Bing Map API.

However, not all companies and their offices are listed in Bing Map and I am not asking for Bing Map to do so.

Instead, I would like location information of each "Contacts" (not personal contacts, but "Contacts" that are added via Exchange Admin Center) to be listed in "Search for a room or location".

When you reply all it does not send an email to the addresses under Bcc.