Issue Horde auto reply doesn't work with domain alias

[Pedro Pereira]

After setup of autoresponder directly on Horde, the mail server will issue an auto reply when I send an email to the main domain, but not when I send an e-mail to the domain alias. Example: sending to [email protected] works (I receive an auto-reply) but sending to [email protected] (an alias without the hifen) will not trigger the auto reply.