We announced at Ignite that we are actively working on bringing dynamic plus aliases to Office 365.
To get around existing usage, the plan is for an opt-in setting. Our ETA is to have this available for all customers by the third quarter of 2020.
I will keep you updated in Uservoice on our progress.Jason Pearce commented
The "fun" thing about + addresses and . addresses is attempting to unsubscribe from mass-email services like ExactTarget, Constant Contact, Salesforce, etc.
You cannot just ask them to unsubscribe email@example.com. They must also unsubscribe nearly an unlimited number of + and . email aliases too. E.g.:
Those mass-email companies should support wildcard requests for their global blocklists. Something like:
450 votesJason Pearce commented
As of Aug 2019, the workflow is painful to save an Outlook Online email attachment to a folder in Office 365 Groups (SharePoint). Email Attachment > More Actions > Save to OneDrive > App Launcher > OneDrive > Attachments folder > Select File > Move to > Select Office 365 Group (SharePoint) > Select Folder > Select Sub-Folder > Move Here > Switch back to Outlook Online.
Please make this better. Please add a Save to SharePoint option. Even better; let the user define some target locations within Office 365 that act as favorites in the More Actions pull-down menu. For me, about five user-defined target locations would be immensely helpful.