I'm almost embarrassed that I'm even asking this question as I assumed that the method for doing this was obvious. Perhaps it is but clearly it isn't to me.
Using Win10, version 2004 with what is likely the latest build or at least a very current version of Outlook 365.
Normally, if a sender has sent a message to you along with other individuals pressing ctrl-r replies to the original sender only and pressing shift-ctrl-r replies to everyone in the thread.
Someone asked me how to reply to the original sender of a Groups.io message using Outlook. In that instance pressing ctrl-R does reply to the group.
If I press the tab key a few times after opening the message I do encounter a button with the name of the original sender. You would think that pressing space or enter on that button would allow you to send an email to that person but it does not. Even the context menu doesn't have an option to send an email message as it does with Thunderbird. What's the most efficient method for sending an email to just the sender?
Blindness Assistive Technology Specialist
JAWS Certified, 2019