You can integrate your Mailfence account into Thunderbird using SMTP and IMAP/POP. This feature is available with Entry, Pro, and Ultra subscription plans.
1. Open your Thunderbird client and go to File -> New.
![use mailfence with thunderbird](https://kb.mailfence.com/wp-content/uploads/2022/03/how-to-use-mailfence-with-thunderbird-1.jpeg)
2. Click on Existing Mail Account.
![use mailfence with thunderbird](https://kb.mailfence.com/wp-content/uploads/2022/03/how-to-use-mailfence-with-thunderbird-2.jpeg)
3. Enter your Mailfence account Display name, Email address and Password. Click on Done.
![use mailfence with thunderbird](https://kb.mailfence.com/wp-content/uploads/2022/03/how-to-use-mailfence-with-thunderbird-3.jpeg)
You can also sync Mailfence Contacts and Calendar events with CardDAV and CalDAV or using Exchange ActiveSync. Mailfence Group member chat function can also be configured using XMPP.