Filelink for Large Attachments
Messages with large attachments are often rejected by mail servers. Thunderbird can use web-based storage services to send large file attachments.
Remote Content in Messages
This page explains the privacy implications of allowing remote content like images to be displayed in email messages.
Blocking a sender
This article explains how to block a particular sender in Thunderbird.
Message threading in Thunderbird - keep messages grouped by conversation
Threading is a useful way of displaying message list in Thunderbird with your messages grouped in tree structures by conversations. Here's how to enable it.
How to create and use mailing lists on Thunderbird
A mailing list is used to send one email to a group of contacts. This article explains how to create and use mailing lists in Thunderbird.
Organize Your Messages by Using Filters
What message filters are, how to create and use them effectively.
Archived Messages
This article explains how the "archive" feature of Thunderbird works.
Addressing an Email
How to add recipients to an email message in Thunderbird, and tips for handling many recipients efficiently.
Cannot send messages
If you cannot send messages with Thunderbird, this page provides a series of steps you can follow to check for common problems.
Signatures
This article explains how to create and use custom signatures (text or images that are automatically appended to messages).
Cannot receive messages
If you cannot receive messages, this page provides a series of steps you can use to check for common problems.
Ignoring threads
The Ignore Thread (or Subthread) feature is very useful for mailing lists. It lets you skip reading the rest of a conversation you're not really interested in.
IMAP Synchronization
IMAP stands for the Internet Message Access Protocol. It enables a mail client (such as Thunderbird) to access messages stored on a mail server. It is more modern and fully featured than POP (Post Office Protocol), which is the other major protocol for accessing mail messages. Most email providers now support IMAP. To see whether your account uses IMAP or POP, check the Server Settings page in the Account Settings.
Quick Filter Toolbar
The Quick Filter toolbar is used to limit the number of messages that are displayed in the message list. Learn more about how to use it.
Hyperlinks in Messages Not Working
When clicking hyperlinks in email, your default web browser should open and display their content. Learn why that may fail and why links may not be clickable.
New Email Address
This article explains how you can subscribe to a personalized email address with Thunderbird.
Sending and Receiving Messages on Thunderbird
How to send and receive email messages using Thunderbird.
Message Tags - Categorize your email in Thunderbird
Message tags let you organize your email messages by categories. Learn how to use them.
Message List Columns
This article explains how to configure the columns that Thunderbird displays in message lists.
What is the winmail.dat attachment?
When sending messages from email clients that use the Microsoft Exchange server, a file attachment called winmail.dat may be added. Learn how to prevent this.
Global Search
Thunderbird includes a message indexing system that improves search performance and displays faceted (categorized) search results.
How can I send a large attachment?
This article explains how to use Thunderbird (or other services) to send large attachments.
How to Use Attachments
This article explains how to use attachments.
Archiving Messages
Inbox or Other Folder Full
How can I avoid to reach the "over quota" limits of my mail server?
Open Search
Instantly take part of a message and search for it in Bing, Yahoo, Twitter or other websites.
File Link
FileLink
Digitally Signing and Encrypting Messages
This tutorial explains how to set up Thunderbird to digitally sign, encrypt and decrypt messages in order to make them secure.
How Thunderbird’s scam detection works?
Compact Inbox or Other Folder
Ignoring threads Redirect 1
Unify your POP email accounts with a global inbox
We'll show you how to merge inboxes from various POP accounts to make what is called a global inbox, where all of the mail can be displayed in one place.