About this Collection
Useful add-ons for email marketers.
4 Add-ons in this Collection
Displays icon for user agent of received mails.
This extension implements RFC 2369 for Thunderbird: Special mailing list header fields in the mail are parsed, and the links are displayed in the extended header view. You can click them to simply go to the archive, request help or unsubscribe.
Allows recipients to cancel their newsletter subscriptions in the thunderbird interface.