-messages: a directory (Maildir), a file, or a URL (C<imap://>,
-C<imaps://>, C<nntp://>, or C<nntps://>). URLs requiring
-authentication must use L<netrc(5)> and/or L<git-credential(1)> to
+messages: a directory (Maildir), a file (various mbox), or a URL
+(C<imap://>, C<imaps://>, C<nntp://>, or C<nntps://>). URLs
+requiring authentication use L<git-credential(1)> to