The auth_imap plugin of qpsmtpd 0.95 (0.84 is not affected) depends on dev-perl/Net-IMAP-Simple. This dependency is missing in the ebuild and it is hard masked due to bug #553466. Reproducible: Always
There's not that much we can do here (except also masking qpsmtpd), unless either Coro gets fixed (unlikely, the author is "making a stand against changes in Perl 5.22") or qpsmtpd drops the dependency.
(In reply to Andreas K. Hüttel from comment #1) > There's not that much we can do here (except also masking qpsmtpd), unless > either Coro gets fixed (unlikely, the author is "making a stand against > changes in Perl 5.22") or qpsmtpd drops the dependency. @net-mail: Coro is fixed now, so feel free to add the dependency in whatever way you see needed. Perl out.