How do mailbox providers handle re-subscribes after list-unsubscribe and how long does it take to process unsubscribe requests?

Email marketer from StackOverflow suggests implementing a clear opt-in process for users to re-subscribe after unsubscribing via the List-Unsubscribe header. The user highlights the importance of storing the user's unsubscribe preference and only removing it upon explicit re-subscription.

Marketer from Email Geeks imagines providers using unsubscribe data to identify users who are still receiving emails and complaining, indicating a potential problem.

Marketer from Email Geeks mentions that some mailbox providers might track the type of email a person receives for about 10 days after they unsubscribe.

Email marketer from Sendinblue highlights the legal requirements for processing unsubscribe requests (CAN-SPAM's 10-day limit). They advise honoring requests as quickly as possible and recommend a confirmed opt-in process if a user wants to resubscribe.

Email marketer from Quora states it is vital to treat a re-subscribe as a brand new subscriber as it avoids potential issues and respects user preference. They highlight the importance of ensuring you are adhering to GDPR and CAN-SPAM.

Email marketer from Litmus responds by stating that unsubscribe rates can serve as a valuable indicator of list health, subscriber engagement, and overall campaign effectiveness, influencing future email marketing strategies and segmentation.

Email marketer from ActiveCampaign highlights the importance of double opt-in strategies for re-engaged subscribers as they enhance the reliability of your user information, reduce the bounce rates of emails, and prevent unengaged contacts from staying on your list. If a user attempts to resubscribe, they must confirm their consent before being added to a list again.

Email marketer from Neil Patel's Blog emphasizes the importance of respecting unsubscribe requests immediately. He suggests that while CAN-SPAM allows 10 days, faster processing improves sender reputation. He doesn't explicitly detail re-subscription processes but implies a double opt-in would be best.

Email marketer from Reddit's r/emailmarketing subreddit shares their experience, suggesting that a double opt-in is a good practice for re-subscribing users after they've unsubscribed. They also point out that some ESPs offer built-in re-subscription management features.

Marketer from Email Geeks shares his impression that Google is not maintaining an unsubscribed list and seems more focused on the presence of a functional 8058 header, with the sender responsible for managing unsubscribes.

Email marketer from Campaign Monitor explains prompt unsubscribe processing boosts sender reputation, recommending honoring requests within 24 hours. Re-subscriptions should utilize a double opt-in approach to ensure genuine consent and compliance.

Email marketer from Mailjet explains that managing unsubscribes efficiently is key for email marketing success. They recommend using a double opt-in process if someone re-subscribes. Processing these requests quickly helps protect sender reputation.

Marketer from Email Geeks shares the volume of people who click on unsubscribe requests then never confirm or follow through is unreasonably high.

Expert from Word to the Wise, Laura Atkins, recommends using a confirmed opt-in (double opt-in) process for re-subscribing users after they have unsubscribed. This ensures that the user actively wants to be back on the list and helps maintain list quality.

Expert from Email Geeks states that an unsubscribe click is a signal of intent, not an instruction, and MBPs will see the click, but not what happens after. Lamb then questions if there is any research on the number of unsubscribe clicks that don't ultimately result in an opt-out request.

Expert from Spam Resource states that Email Service Providers need to have a process for handling hard bounces and unsubscribes to prevent damage to their reputation. The post talks about how to prevent hard bounces with clean lists and explains the importance of prompt unsubscribe requests.

Expert from Email Geeks suggests assuming that users will receive transactional messages even after unsubscribing and believes Google would focus on the percentage of recurrence versus any recurrence when checking for compliance.

Expert from Email Geeks explains that unsubscribe timeframes vary by user location and relevant legislation, distinguishing between 'less than 10 business days' and 'as soon as possible but no longer than 10 business days.'

Documentation from Microsoft highlights the importance of processing unsubscribe requests promptly (within 2 business days). It doesn't detail re-subscription specifically but indicates adherence to industry best practices for respecting user preferences after unsubscribing.

Documentation from FTC clarifies requirements under the CAN-SPAM act stating that senders have 10 business days to honor the unsubscribe request. There is no direct mention on best practices of resubscription.

Documentation from RFC 2369 (the standard defining the List-Unsubscribe header) does not specifically address re-subscription. It focuses on the mechanism for unsubscribing, leaving re-subscription methods to the discretion of the list owner.

Documentation from GDPR covers consent management, indicating that explicit consent is required for processing personal data. Re-subscription after unsubscribing needs fresh, affirmative consent to comply with GDPR guidelines.

Documentation from Google Workspace Admin Help explains that Gmail honors the List-Unsubscribe header, allowing users to unsubscribe with one click. While not explicitly detailing resubscription handling, it implies that users would need to opt-in again through standard subscription methods after using this feature.