As a user of an open-source email client receiving marketing emails, I want to be able to identify messages with expiration dates, especially those that have already expired, in order to effectively declutter my inbox and actively contribute to reducing the ecological impact associated with storing these expired messages.
The “Email Expiration Date” project aims to reduce the environmental impact of commercial emails by facilitating the deletion of outdated messages. Currently, email clients lack integrated tools to effectively manage the deletion of emails sent by advertisers who have set an expiration date. Implementing this feature in email clients would provide users with effective cleanup tools based on email expiration dates.
For more information about the project and the proposed standard, please refer to:
Integrating this feature would allow users to more easily clean up their inboxes by automatically deleting expired messages they are unlikely to read. With just one or two clicks, they could remove hundreds of unnecessary messages, improving email management efficiency and contributing to the reduction of the carbon footprint associated with email storage (see Ressources section).
We are considering several options for implementing this feature:
What we propose not to do:
To ensure this feature is flexible and respectful of user preferences, the following options should be available:
It is crucial that this feature be discussed within the community to anticipate and address potential challenges. For example, measures must be taken to prevent the malicious use of expiration dates, such as dates set before the email is sent or just a few hours after sending. The user must always remain in control of deleting emails in their inbox.
Given the climate emergency and the importance of reducing the environmental impact of technology, we request that this feature be considered a high priority. Every technology must adapt to minimize its environmental impact.
Currently, only a small number of mass emails have an expiration date. According to a study by Orange in France, as of May 2024, about 5% of emails have an expiration date (source: https://www.linkedin.com/posts/jonathanloriaux_orange-email-expiration-date-activity-721173079015230...).
This is mainly due to the difficulty of enforcing an evolution of an internet standard. Although mass senders are very interested in deploying expiration dates in their emails, few sending platforms allow the addition of SMTP “Expires:” headers, and no major Mailbox Provider has implemented the technology.
Therefore, it is essential that the entire ecosystem (mass senders, mass email sending solutions, and email clients) advances to make this project a reality.
These wireframes are examples of what the functionality could look like in existing email clients. We will progressively add more examples.
Expiration dates in emails are mainly intended for mass emails. At this stage, it does not seem relevant to allow an email client user to set an expiration date for emails they send.