I make a unique email address (on my domain) for every mailing list and account I sign up for, where each address forwards to its own IMAP folder. This way, I e

I make a unique email address (on my domain) for every mailing list and account I sign up for, where each address forwards to its own IMAP folder. This way, I effectively have an individual inbox for every correspondent, so I can easily spot new messages from senders I particularly care about - but it's all conveniently available through a single login.