How to disable SSLv3

One-stop resource on how to effectively disable SSLv3 in major web browsers as well as in web, mail and other servers that may still be using it.

Check the SSL/TLS setup of your server or CDN

Courier-imap

Put the following line in your /etc/courier/imapd-ssl configuration file, or modify existing:

IMAPDSSLSTART=NO
IMAPDSTARTTLS=YES
IMAP_TLS_REQUIRED=1
TLS_PROTOCOL=TLS1
TLS_STARTTLS_PROTOCOL=TLS1

Then restart the server (in Ubuntu: sudo service courier-imap restart).

Credits

This page was compiled by Michele Spagnuolo.