My problem with Evolution is that it's not a mail tool, it's "a personal information management application" (their words). I don't want a calendar and I only barely want an address book; I do want something that operates without a server daemon (other than SMTP), against a local-disk-only mail store; and I want to be able to access that mail store from a command-line MUA. Admittedly I haven't tried a recent version of Evolution, because I hated it so much the last time.