4 In Mozilla Thunderbird, from the Tools menu select Account Settings.
Select on create a new Email account
4 Click on “skip this and use my existing email”
4 Enter your name, e-mail address, password and continue.
4 Select POP3 as the type of incoming server you are using and Click on manual configuration.
4 Select your SSL, Authentication, username, incoming and outgoing servers
as provided below and click on Done
4 Tick on “I understand” and proceed to Done.
4 Your clearmail account has been setup successfully.
Please click below, For Video Guide :