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 Filelink for Large Attachments Thunderbird and Gmail Archived Messages The difference between IMAP and POP3 Automatic Account Configuration IMAP Synchronization Cannot receive messages Switch from POP to IMAP account Ignoring threads Manual Account Configuration Cannot send messages Make Thunderbird the Default Mail Client Hyperlinks in Messages Not Working How to create and use mailing lists on Thunderbird Getting started with Thunderbird Glossary of Terms including types of Accounts Changing IMAP to POP Open Search Maildir in Thunderbird New in Thunderbird 102 Configure an account What is the winmail.dat attachment? Unify your POP email accounts with a global inbox