ToDo
Things, that have to be documented:
generating the decrypted SSL-key with OpenSSL-CA
use of TinyCA and phpki-CA
Postfix: main.cf and master.cf
implement
http://www.contentschmiede.de/archiv/2005/08/26/postfix_fuer_typo3_und_gmx_fit_machen/
in email → Postfix → SMTPd- / SMTP-Authentication