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As well as the option to unsubscribe using an unsubscribe link within the newsletter, some e-mail clients also offer the option to unsubscribe via a button or link. These unsubscribe buttons or links are control elements of the corresponding email application. This type of unsubscription is subsequently referred to as ‘unsubscription via control elements’.
As a result, owners of email accounts with these email providers have a simple, convenient option to unsubscribe from newsletters, as they do not need to first search for the unsubscribe link within the newsletter.
The following screenshot demonstrates the relationships described here in WEB.DE. The displayed newsletter contains the standard unsubscribe link (1). At the same time, WEB.DE provides a separate unsubscribe link in its user interface (2).
Other email providers or email applications that provide such additional unsubscribe options include Gmail, Outlook.com and AOL Mail.
Your newsletters need to feature a list-unsubscribe header in order to enable your recipients to unsubscribe via control elements. The listed email applications use the list-unsubscribe header to determine all the required information for a successful unsubscription via the control elements.
As standard, Inxmail Professional automatically includes a list-unsubscribe header in all mailings that are sent from standard mailing lists. This contains all the information required to allow users to unsubscribe via control elements in their email applications. It also includes the so-called list-unsubscribe-post entry that is required for the one-click list-unsubscribe procedure.
One-click list-unsubscribe procedure
The CSA (Certified Senders Alliance) has stipulated that email providers and email marketing providers should implement the one-click list-unsubscribe procedure in their email applications from 1 July 2019. The one-click list-unsubscribe procedure introduces a technical change to the way in which unsubscription via control elements is carried out. Unsubscription takes place using a POST request instead of the previous GET request. Among other things, this helps to avoid unintentional unsubscriptions caused by anti-spam software. Newsletter recipients will not notice any changes. They can continue to use the respective button in their email program to unsubscribe from a newsletter.
There is usually also no need for you to do anything in connection with the one-click list-unsubscribe procedure. As a general rule: If you use Inxmail Professional as the principal system for managing your recipients, you do not need to do anything. This also applies if you use a third-party system in which the subscriptions and unsubscriptions of recipients are received and processed by Inxmail Professional and are then simply synchronized with your third-party system. This is the case, for example, if you use Inxmail Professional Email Marketing for Salesforce and Inxmail Professional for Microsoft Dynamics.
You only need to take action if you have connected a third-party or external system to Inxmail Professional and the subscriptions and unsubscriptions of recipients are (directly) received and processed by this system, in other words, you use a third-party system as your principal system for managing recipients. In this case, you need to make some manual adjustments. Detailed information can be found in the section Manually overwrite the list-unsubscribe header.
Additional information
You can find further information on the one-click list-unsubscribe procedure under the following links:
