On Wed, Sep 4, 2019 at 8:25 AM Philipp Faeustlin via dovecot < dovecot@dovecot.org>
> Further investigation showed me that it has to be a bug. > > I tested with Dovecot 2.2.36.3 (a7d78f5a2), Pigeonhole version 0.4.24 > (5a7e9e62): > > In this version the additional addresses in vacation :addresses > ["t...@example.com"] are handled case-insensitive. > > In the new version: Dovecot 2.3.7.2 (3c910f64b), Pigeonhole version > 0.5.7.2 (7372921a) installed via https://repo.dovecot.org/, (same sieve, > same configuration) these addresses are handled case-sensitive. > > The case-sensitive matching of mail addresses, doesn't make any sense to > me. > > Could someone confirm this behavior? > > Isn’t RFC-compliant behavior to treat the local part as case-sensitive and the domain-part as case-insensitive?
