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How do unsubscribe links work in cold email tools?
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Every place a page here uses this source, in the order the words come in it.
Still have a question, spotted an error, or have a better explanation or a source we should cite? “That distinction matters more than most cold email senders realize.” Here's how it actually works. When someone clicks the unsubscribe link your cold email tool inserts in the footer, a few things should happen in order. The active sequence stops for that contact immediately. The address gets added to a suppression list (a dedicated do-not-contact list the tool keeps). And every future campaign checks against that suppression list before sending anything out.
The catch is "should." Not every tool handles this the same way, and the gaps can get you into trouble. “You want list-level (account-wide) suppression, not just sequence-level suppression.” What you're legally required to do. The rules differ by jurisdiction, but here's the short version.
Someone clicks the unsubscribe link in your cold email. Great. But do they stop getting this sequence, or every future email you ever send them? That distinction matters more than most cold email senders realize. “And every future campaign checks against that suppression list before sending anything out.” The catch is "should." Not every tool handles this the same way, and the gaps can get you into trouble.
Here's how it actually works. When someone clicks the unsubscribe link your cold email tool inserts in the footer, a few things should happen in order. The active sequence stops for that contact immediately. The address gets added to a suppression list (a dedicated do-not-contact list the tool keeps). And every future campaign checks against that suppression list before sending anything out. “Not every tool handles this the same way, and the gaps can get you into trouble.” Sequence-level vs. list-level unsubscribes. Some cold email tools only suppress a contact from the current sequence, not your entire account. So if you upload a new lead list next month and that person is on it, they might get emailed again. You want list-level (account-wide) suppression, not just sequence-level suppression. Check your tool's settings. Test it yourself by clicking the link on a test email and verifying the contact is suppressed before your next send.
The catch is "should." Not every tool handles this the same way, and the gaps can get you into trouble. “So if you upload a new lead list next month and that person is on it, they might get emailed again.” What you're legally required to do. The rules differ by jurisdiction, but here's the short version.