I’ve searched regarding this on meta, but couldn’t know.
I only know the 1 ‘From’ setting that can be configured in my ‘Site Settings’. ‘From’ and The email receiver sees 4 fields (shown in my screen shot). Which of these can be configured in our site settings (and where) and which can be set thru Amazon SES (or MailGun).
Also, does ‘Reply-By’ setting in the site settings has any effect on any of these 4 given/asked above?