Create a combined .pem certificate file:
Open a text editor and paste the contents of the primary certificate and the private key one after another in the following order:
- The Primary Certificate (your_domain_name.crt)
- The Private Key (your_domain_name.key)
Include the 'BEGIN' and 'END' tags on each. The result should look like this:
(Your Primary SSL certificate: your_domain_name.crt)
-----BEGIN RSA PRIVATE KEY-----
(Your Private Key: your_domain_name.key)
-----END RSA PRIVATE KEY-----
Save the combined file as etugrasslcertificate.pem
Save the E-Tuğra Intermediate certificate:
Copy the E-Tuğra intermediate certificate (E-Tugra_root.crt) into a text editor and save it as a new file named e-tugra_root.txt.
Securing your Courier IMAP:
Locate and open imapd-ssl file (typically found in /usr/lib/courier-imap/etc/). Add the following directives and file locations:
Please verify that line below line is allowing SSL3
Securing your POP3:
Locate and open pop3d-ssl file (typically found in /usr/lib/courier-imap/etc/). Add the following directives and file locations:
Make sure that the file permissions are set so that e-tugrasslcertificate.pem is readable by root only.
Restart the Courier IMAP server.