How to check if Sendlane complies with RFC 8058 for one-click unsubscribe?

Email marketer from Reddit shares to manually inspect an email sent from Sendlane, viewing the message headers to verify the List-Unsubscribe header is present and correctly formatted with a valid URL or mailto: address. Check the HTML body for a visible unsubscribe link, per RFC 8058.

Email marketer from Stack Overflow explains that you can view the raw email headers to check for List-Unsubscribe headers. They suggest viewing the email source in your email client and searching for the relevant headers.

Email marketer from Mailjet advises sending a test email to a personal email account (like Gmail) and viewing the email's source code. Look for the 'List-Unsubscribe' header to see if it's present and correctly formatted, which indicates support for one-click unsubscribe.

Email marketer from Email Geeks suggests escalating the issue with Sendlane support, indicating the importance of both the unsubscribe link in the footer and the List-Unsubscribe header for RFC 8058 compliance. They express surprise if Sendlane doesn't have it implemented correctly as these have been requirements for a while now.

Email marketer from Email Geeks would be surprised if Sendlane hadn’t implemented RFC 8058, also mentions that sometimes the GPT check can flag if a particular email is flagged as bulk email but doesn’t have it. Also, if they do support it, there may be an issue where they are blocking requests to that endpoint silently.

Email marketer from Campaign Monitor suggests sending test emails from Sendlane to different email clients and checking for the presence of an unsubscribe link in the header or body. This is often a visual indicator that one-click unsubscribe is supported.

Email marketer from Email on Acid recommends using email testing tools to inspect the headers of test emails sent through Sendlane. These tools can reveal whether the List-Unsubscribe header is present and correctly formatted.

Email marketer from Gmass highlights the importance of one-click unsubscribe to comply with Google's requirements and recommends checking if the List-Unsubscribe header is correctly implemented by inspecting the email headers of a test email sent through Sendlane.

Expert from Email Geeks suggests if Google says the link isn't compliant, and Sendlane is explaining "one click unsubscribe" so incorrectly, then it's very likely they haven't implemented it at all or it's implemented incorrectly.

Expert from Word to the Wise discusses that in Gmail, a one-click unsubscribe link is displayed at the top of the email if the sender has correctly implemented the List-Unsubscribe header. If Sendlane emails do not show this link in Gmail, it suggests a problem with their implementation.

Expert from Email Geeks explains that if there’s a List-Unsubscribe-Post: header they’re trying to support it. If there’s also a List-Unsubscribe: header with an https link, and both of those headers are included in the DKIM-Signature: header they’re probably supporting it correctly but the POST endpoint needs checking.

Expert from Word to the Wise emphasizes that the presence of a List-Unsubscribe header is essential but not sufficient. She advises validating that the header functions correctly by triggering an unsubscribe via the provided mechanisms (either mailto or HTTP) and confirming that the unsubscribe request is properly processed.

Documentation from Litmus explains that a List-Unsubscribe header must be included in the email's header to facilitate one-click unsubscribe. It advises checking for both the mailto: and HTTP versions of the header.

Documentation from Google Postmaster Tools outlines the guidelines for bulk senders, which includes requiring one-click unsubscribe functionality. To verify compliance, check if Sendlane includes a prominent and easily accessible unsubscribe link that adheres to Google's specifications.

Documentation from RFC Editor details the official RFC 8058 standards for one-click unsubscribe, which involves including a List-Unsubscribe header with a mailto: or https: URL. The standard defines the methods a sender must implement to handle unsubscribe requests.

Documentation from SparkPost stresses the importance of complying with one-click unsubscribe standards. They recommend regularly auditing email configurations and using testing tools to ensure List-Unsubscribe headers are correctly set up and functioning.