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

Hasiera
Thunderbird
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

Signatures

Archived Messages

Organize your messages with filters

Message threading in Thunderbird - keep messages grouped by conversation

Send and receive messages in Thunderbird

How to create and use mailing lists on Thunderbird

Cannot receive messages

Switch from POP to IMAP account

Ignoring threads

FAQ Changing IMAP to POP

Cannot send messages

Global Search

Quick Filter Toolbar

New Email Address

Addressing an Email

Message Tags - Categorize your email in Thunderbird

Hyperlinks in messages do not work

Message List Columns

Digitally Signing and Encrypting Messages

New email notifications in Thunderbird

How can I send a large attachment?

What is the winmail.dat attachment?

Prerequisite for sending an encrypted email message

Archiving Messages

Inbox or Other Folder Full

How to Use Attachments

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

File Link

FileLink

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

Thunderbird and OpenPGP Alias Keys

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