I was impressed that it correctly inferred the IMAP and SMTP settings for my custom domain name, but after using it for ~30 seconds random old emails started appearing at the top of the email list, above my latest emails.

Maybe I'll try again in another 5 years.

edit: someone thinks i didn't wait for imap to finish. I did. My latest email appeared at the top. Then 30 seconds later some ancient emails popped up above it, seemingly triggered by scrolling in the email list pane.