Hello everybody, I'm running an V-Server with Ubuntu 14.04. I followed this manual The Perfect Server - Ubuntu 14.04 (nginx, BIND, MySQL, PHP, Postfix, Dovecot and ISPConfig 3) - HowToForge It worked not bad. I can send Mails, and ISPConfig works and so on. But Postfix is discarding Mails with attachemtents like *.pdf and *.zip. Otherwise *.tex files will delivered correctly. /var/log/mail.log says: *look the file* Does anyone has an idea? Would love to hear!