I’ve been getting in the habit of giving different providers different email addresses (e.g. I’ll give Amazon the email firstname.lastname@example.org). Setting aside the merits of this strategy, I have a problem:
Sometimes I receive correspondence from these companies to the email address I gave them and I’d like to make it look like I’m responding from that email. In other words, if I’m email amazon, I want it to come from email@example.com and not firstname.lastname@example.org.
These aliases are easy to set up if you have one or two, but I’ve got dozens at this point. Is there a way to create email aliases/identities on the fly? For example, if I get an email at email@example.com, I’ll be prompted in some way to add that email to my list of aliases?
Currently I’m using Airmail + FastMail, but I’m willing to switch clients if there’s a client that provides this functionality.