What's 'Unsubscribe'?
It's a legal requirement that you allow people to unsubscribe from your mailing lists - this just means they can opt out of receiving your emails any more. Each email you send with 18amail gives recipients the option to unsubscribe via a little link at the bottom. But you've got the option (detailed above) to unsubscribe people too. This is different to deleting a contact, as if you add them again, or you accidentally re-upload them, the 18amail will know that they requested to be unsubscribed, and so won't send them any more emails so as to stay within legal legislation.
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