How do I make e-mail groups to auto populate the “to” in a new e-mail to send

[tmalsack]

My incident log matrix draft.xlsx
Hi all-
I have an Excel workbook with a drop down box on sheet 2 under "To". How do I create e-mail groups that would open in a new e-mail with the correct names already filled in for each topic in the left column? I have already formatted the sheet to automatically put a check mark under the correct people to call, but am lost on creating e-mail groups and a new e-mail to pop up, populated with the right email group names and ready to send after I type in the body? Did that make sense? Attached is an example workbook, all SSI removed. sincerely, Thomas