On Jan 29, 2013, at 08:43, Markus Grunwald <mar...@the-grue.de> wrote:
> is it possible to use multiple certificates for my virtual mail domains? > > I have configured my "main" mailbox as the-grue.de. For this > domain, I can use smtpd_tls_cert_file and smtpd_tls_key_file and tls > works just fine :) But I don't see a possibility to add certificates > for the virtual mailbox domains like e.g. maennerchor-kirchseeon.de. > > Is it possible to add certificates/tls for the virtual domains? Your mail server has one (1) main identity; its own hostname. I would advise you to get a certificate for that one hostname, for example 'mail.the-grue.de', and then have your customers use that in their MUA as the host to send and retrieve mail. This is the simplest of setups, without any hassle long-term. A possible alternative is to use a so-called 'multi-domain' certificate, which allows for a single certificate with several domains on it that you need to prove control over. Individual certificates require multiple instances, if I am not mistaken. Check the mailinglist archives, I am quite sure this has been asked before. Cya, Jona