Hi @Barry Schwarz ,
Welcome to our forum!
Are you using Outlook for Windows desktop client?
position the messages at the same place and with fixed width and height
Based on my test in Outlook for Windows desktop client, the size of the opened email windows depends on the last time you opened and adjusted the email. I'm afraid that multiple messages that I open at the same time will appear in the same place. We can only open a message in full screen once, so that each time we open a message individually, it will be displayed in full screen.
Please kindly understand that many functions are not designed at present. It is recommended that you could post the functions you expect and your sincere suggestions on the website dedicated to collecting feedback. We sincerely welcome your suggestions, and thanks for your understanding and support!
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