Email and messaging Read, send, and manage your emails and messages. All All articles and threads Contacts Send and receive email Import and export email Calendar In English Blocking a sender Thunderbird and Gmail Using Thunderbird with Google Calendar The difference between IMAP and POP3 Import settings and data into Thunderbird for Android Archived Messages How to create and use mailing lists on Thunderbird Automatic Account Configuration IMAP Synchronization Filelink for Large Attachments Cannot send messages Make Thunderbird the Default Mail Client Switch from POP to IMAP account Ignoring threads Manual Account Configuration Changing IMAP to POP Cannot receive messages Hyperlinks in Messages Not Working Glossary of Terms including types of Accounts Unify your POP email accounts with a global inbox New in Thunderbird 102 Configure an account What is the winmail.dat attachment? Open Search Maildir in Thunderbird