Outlook Mobile clients have started to highlight messages received from unverified senders. But what does "unverified" mean and what can be done to fix the problem? The issue lies at the sender’s end, so the administrators of the sending system must verify their email configuration to make sure that Exchange Online can validate inbound messages from their domain. The same visual markers are available in Outlook classic, OWA, and the new Outlook.| Office 365 for IT Pros
Microsoft's April 17 announcement that OWA in Exchange Server will not support access to online archives after May 12, 2025, surprised quite a few people. However, the decision is entirely logical and is driven by falling mailbox numbers on-premises and the need to match engineering and support costs with revenue. Outlook classic continues to support access to online archives. Maybe Outlook will be the Exchange on-premises client for the future.| Office 365 for IT Pros