it is possible for them to end up on disk if processes are
swapped out. Use of an encrypted swap partition is recommended.
+=head1 AUTHENTICATION METHODS
+
+LOGIN (username + password) is known to work over IMAP(S),
+as does AUTH=ANONYMOUS (which is used by L<public-inbox-imapd(1)>
+as part of our test suite). AUTHINFO may work for NNTP, but
+is untested. Testers will be needed for other authentication
+methods.
+
=head1 DENIAL-OF-SERVICE VECTORS
lei uses the same MIME parsing library as L<public-inbox-mda(1)>