How to add an expiration date to emails sent from Adobe Campaign Classic?

This documentation aims to explain how to add an expiration date in the SMTP headers of your emails sent from Adobe Campaign Classic. To learn what an SMTP header is, don’t hesitate to read this article.

As a reminder, as defined in the technical specifications (, the header has this format:

Expires: Wed, 1 Dec 2021 17:22:57 +0000

To define the expiration date, you simply need to modify the date given in the example to give it a value in the near future (for example, when your promotion will end).

Adding an expiration date manually

Adding an expiration date can be done in a few clicks.

In your delivery, click on “Properties”

In the properties, go to the SMTP tab and add your “Expires” header in the “Additional SMTP headers” field. Don’t forget to customize the date.

Adding an expiration date automatically to your deliveries

To avoid having to manually modify your expiration date, it is possible to automate the modification of the expiration date. To do this, you need to… We still lack information for this section!

If you want to contribute to this documentation, don’t hesitate to contact us