====== Courier with TLS connection ======

  * [[en:linux:apache:ssl|Create certificates]]
  * Create PEM file

<code bash>
cat /etc/ssl.key/domain_de.key /etc/ssl.crt/domain_de.crt /etc/ssl.crt/domain_de.cabundle > /etc/ssl.crt/domain_de.pem
</code>

  * Edit: /etc/courier/imapd-ssl

<code text>
TLS_CERTFILE=/etc/ssl.crt/domain_de.pem
IMAPDSTARTTLS=YES
IMAP_TLS_REQUIRED=0
</code>