Stephan, Is there a reason you don't pick up the dovecot-config file to set additional libraries like the Kerberos libs?
I'm the FreeBSD Ports Maintainer for pigeonhole, and a user filed a PR about missing the krb5 libs. Thanks! -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larry...@gmail.com US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281