Read an e-mail, hit Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed.
Autofile can discover folders to store each author mail. Will save you lots of time like defunct filemail.
Use @ to mention somebody on an email to link and add to the CC.
Replace placeholders with date and time as you type.
Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)
Allows you to resend (also known as redirect) email messages.
Uses 'cardbook' if installed
Bases on the add-on 'Mail Redirect' by Onno Ekker and Pawel Krzesniak
Please see the help page on how to use and why it sometimes does not work!
Toggle wrapping of long lines in the message composition window when writing plaintext messages. Wrapping can be controlled via a toolbar button and a keyboard shortcut.
With the help of this Add-on, up to 99 pre-made texts (standard texts, text modules or even signatures) can be stored, which can then be retrieved and inserted when writing an e-mail.
The texts can be preformatted with HTML.
This add-on changes all but the first "to" to "cc" if there are multiple "to" when replying to an email.
Addons to edit EML files and save your emails as EML file with their attachements.
Available on Github with MIT Licence :
Adds browser action icon to toolbar to open Telegram. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/telegram-button/
Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.
Quickly choose one of the previously selected colors for a message text
Quick & easy PGP encryption / decryption tool
* Save & use many public encryption keys to encrypt mail content
* Save & use many private decryption keys to decrypt mail content
Insert signature helps you to insert usually used text by your customization.
Adds an 'expand lists' button to the compose window. It replaces all mailing lists with their contacts.
Upload large attachments to Plik and send the link by email
Copy email address to clipboard.
Check that number of non-BCC recipients does not exceed a parameter.
Upload large attachments to your Cloud and send the link by email
Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.