Maintaining your subscriber list is an essential part of any email marketing strategy because it allows you to trim away addresses in your list who don’t wish to receive your messages. Continuing to send to these messages can leave you open to being reported as spam, which can hurt your reputation and deliverability. SendGrid provides customers with two different ways to manage their marketing email subscribers: Email Reports – By enabling the Subscription Tracking App from the “Apps” section of your account, a footer will be placed at the bottom of all transactional SMTP and Web API emails. This footer will contain an unsubscribe link, allowing recipients to opt out of your emails. Email Marketing Recipient List Unsubscribes – If you’re sending email via the Email Marketing App, SendGrid automatically includes an unsubscribe link to the bottom of your outgoing messages. Recipients who click these links are suppressed from that future recipient list. However, if the recipient is part of additional lists, they will not be suppressed from those. Once recipients have chosen to unsubscribe from one of your marketing email lists, you can use the SendGrid “Manage Unsubscribes” feature to remove them from additional lists. At the moment, there isn’t a master list of all the recipients who have unsubscribed from your list. But, you can export a list of all unsubscribes who have been logged across all of your recipient lists through the Manage Unsubscribes page by choosing the “Download as csv from all lists” link. You can also manually include an unsubscribe link to your marketing emails through the Email Marketing HTML editor. To learn more about managing your marketing email recipient list and how to remove the recipients who have unsubscribed from your list, visit our Knowledge Base article Marketing Email Unsubscribes.