Search and find old emails, that's where a CLI shows its merits. I can use grep or agrep (approximate grep, to search for spelling variations) on mailboxes, or

Search and find old emails, that's where a CLI shows its merits. I can use grep or agrep (approximate grep, to search for spelling variations) on mailboxes, or mutt to have a tool which handles the base64-encoded stuff. I have to use Thunderbird at work too, but every so often I'm glad that mutt handles IMAP as well and helps me find stuff that Thunderbird will not.