By practicing good list hygiene, you increase the likelihood of successful delivery of your email. List hygiene involves processing unsubscribe requests and abuse complaints in a timely manner.
According to the American Federal CAN-SPAM law, senders must allow recipients to unsubscribe through postal mail. As a best practice, you should include all of the following methods:
A recipient unsubscribes by sending an email to a specific email address that is monitored or automatically processed.
Most commonly used, the sender provides a link to a web form where recipients enter their email addresses to unsubscribe.
The recipient can send a letter through the postal service to a physical address that is monitored and can be used to unsubscribe from a list. This method is not commonly used, but the ability to use it is a US Federal requirement.
You can also use list-unsubscribe with domains that allow it. Acoustic Campaign supports list-unsubscribe. It is enabled by default.
- Acoustic provides the List Unsubscribe header that's needed for the Gmail and Apple email client unsubscribe features to work. However, it's at the discretion of those ISPs to choose to display the Unsubscribe link within the email client. Gmail only displays the unsubscribe link for senders with positive reputations. To ensure your link is displayed, work toward improving your sender reputation.