scanned.
If not provided, it defaults to F</var/mail/$ENV{USER}> and
-F<$ENV{HOME}/Maildir/>.
+F<$ENV{HOME}/Maildir/>. If USER or HOME are not in the environment,
+the corresponding default directory is ignored. So on a system with
+neither of these variables defined, this option will default to an
+empty list.
B<NOTE:> See L<Email::FolderType> for information on how the type of a
folder is identified. In short, the suffix of the folder is analyzed:
=head1 ENVIRONMENT
The only recognised environment variable is B<LASTMSG_DEBUG>, which if
-set to a true value causes the script to emit a lot of information
-about what it is doing.
+set to a true value causes the script to emit a lot of information on
+STDERR about what it is doing.
=head1 TODO
=head1 COPYRIGHT AND LICENSE
-Copyright (C) 2016 by Marius Gavrilescu
+Copyright (C) 2016-2017 by Marius Gavrilescu
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.24.1 or,