Thank you for posting your question in the Microsoft Q&A forum.
I completely understand why having a global “delay all outgoing emails” rule is important it’s a very practical safety net that helps catch mistakes right after clicking Send.
At this time, the new Outlook for Windows does not support a rule that delays or defers all outgoing messages in the same way Classic Outlook does. Unfortunately, Microsoft has also not shared an official timeline or roadmap confirming if or when this specific rule based feature will be added.
However, there are a couple of partial alternatives available:
Schedule send (per email): When composing an email, select the dropdown arrow next to Send and choose Schedule send to select a specific delivery time.
You could refer to this article for a better view : Delay or schedule sending email messages in Outlook - Microsoft Support
Switching back to Classic Outlook
If the rule‑based delay is essential to your workflow, you can switch back to Classic Outlook at any time using the toggle in the top‑right corner of the app.
About the Classic Outlook reading‑pane font
Regarding your other concern you’re correct. The font used in the reading pane of Classic Outlook cannot be customized. Outlook allows font changes for composing messages, but Microsoft does not provide a supported option to change the reading‑pane font itself. This has been a long‑standing limitation and, unfortunately, there is no workaround to make the reading‑pane text more readable beyond system‑level display scaling.
Providing feedback to Microsoft
I agree that both features a global delay rule in the new Outlook and better font customization in Classic Outlook would be extremely valuable. I strongly encourage you to share this feedback directly with Microsoft so it can be considered by the product team.
You can submit feedback through the Outlook (new) · Community portal and describe your request in detail. Once submitted, feel free to share the link here. I’d be happy to upvote it to help increase visibility.
- Visit the Outlook · Community
- Select Send feedback
- Clearly describe your request (for example: “Please add a global ‘delay all outgoing emails’ rule to the new Outlook for Windows, similar to Classic Outlook.”)
Once you’ve submitted feedback, feel free to share the link here. I’d be happy to upvote it to help increase visibility.
As community moderator access to internal development details is limited, and I don’t have direct influence over product design decisions. That said, I’ll always do my best to guide you to the right resources and keep you informed of current capabilities.
Thank you again for your time and understanding. While my initial response may not resolve the issue immediately, I’d like to gather more details about your situation so I can assist you more effectively.
I really appreciate your patience, and I’m here to help. Looking forward to your response.
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