Check that number of non-BCC recipients does not exceed a parameter.
True "Send Later" functionality to schedule the time for sending an email.
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!
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
Confirm mail address and attachments based on flexible rules.
Shows a colorful border around the "New Message" window, so you can tell different identities apart.
Builds on the original BorderColors and the "GT" version, adding different border styles.
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.
When reply to all is used, move original To: recipients to Cc:
Also forces "Cc:" to be displayed on all new messages.
GitHub Repo: https://github.com/cyb3rmonk/reply-all-auto-cc
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Do you often send emails to the same list of people? Do you press reply and then clear off subject/email body?
No longer. Open a new compose window with all recipients/cc/bcc in a clean state. You can start with a new subject line and email body.
Switch the signature on/off or choose a new one from your predefined set.
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
Upload large attachments to your Cloud and send the link by email
Insert standard text blocks in an easy way in composer. No mouse: done by keyboard.
Type br<ctrl-d>, it converts to best regards. #c is cursor position.
Make a list of shortcut-replacements in the addon settings. Replacements may be multiline.
A revival of the popular Markdown-Here addon for Thunderbird 78 and beyond.
Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.
Make your photos smaller, so they don't take forever to email.
Simplify email categorization - it will be easier for you and others to manage mail. Define the set of prefixes for all emails you send or let SubSwitch to autodiscover it. While writing insert prefix to the title - choose one from your set.
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.
Clean up the display of links rewritten by Microsoft ATP Safe Links when reading and composing mail, so the original links can easily be viewed and copied, while retaining the rewritten addresses as the actual target of all links.