Created attachment 8581307
Screenshot of editable field (Linux)
After clicking on the last entry of the dropdown, labeled "Customize From Address", the field is editable (it's now a combobox).
When changing the value, it continues to use the identity that was selected before, but uses the entered From address. I verified with 2 different accounts that this is really the case: Different SMTP servers were used, depending on which identity was selected first.
Please note that there's a minor UI glitch here: We have 2 dropdown arrows, as you can see in the screenshot. They both have the same effect. When clicking the right one, the left one even shows a pressed state.
Created attachment 8581307
Screenshot of editable field (Linux)
After clicking on the last entry of the dropdown, labeled "Customize From Address", the field is editable (it's now a combobox).
When changing the value, it continues to use the identity that was selected before, but uses the entered From address. I verified with 2 different accounts that this is really the case: Different SMTP servers were used, depending on which identity was selected first.
Please note that there's a minor UI glitch here: We have 2 dropdown arrows, as you can see in the screenshot. They both have the same effect. When clicking the right one, the left one even shows a pressed state.