find /var/vmail -type f -mtime 30 -regextype posix-extended -regex '.*/[^/]+/[^/]+/Maildir/\.Junk/[^/]+/.*' -exec rm {} \;

Je potřeba poskytovat místo certifikátu celý chain.

Certifikát serveru: /etc/postfix/smtpd.cert <- ln -s /usr/local/ispconfig/interface/ssl/ispserver.crt
Certifikát Intermediate CA: /usr/local/ispconfig/interface/ssl/startssl.sub.class2.server.ca.crt
Certifikát CA: /usr/local/ispconfig/interface/ssl/startssl.ca.crt

cat smtpd.cert startssl.sub.class2.server.ca.crt startssl.ca.crt > /etc/ssl/chain.pem

dovecot.conf:

ssl_cert = </etc/ssl/chain.pem
ssl_key = </usr/local/ispconfig/interface/ssl/ispserver.key