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Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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Email and messaging
Send and receive email

Email and messaging

Send and receive email

Everything you need to know about sending and receiving emails.

In English

Remote Content in Messages

Blocking a sender

Organize your messages with filters

Signatures

Archived Messages

Message threading in Thunderbird - keep messages grouped by conversation

Send and receive messages in Thunderbird

How to create and use mailing lists on Thunderbird

Ignoring threads

Cannot receive messages

Quick Filter Toolbar

FAQ Changing IMAP to POP

Hyperlinks in messages do not work

Switch from POP to IMAP account

Cannot send messages

Message Tags - Categorize your email in Thunderbird

Global Search

Message List Columns

Addressing an Email

New email notifications in Thunderbird

How can I send a large attachment?

How to Use Attachments

What is the winmail.dat attachment?

New Email Address

Prerequisite for sending an encrypted email message

Thunderbird and OpenPGP Alias Keys

Archiving Messages

Inbox or Other Folder Full

How can I avoid to reach the "over quota" limits of my mail server?

File Link

FileLink

Digitally Signing and Encrypting Messages

How Thunderbird’s scam detection works?

Compact Inbox or Other Folder

Ignoring threads Redirect 1

Unify your POP email accounts with a global inbox

Thunderbird 78 FAQ

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