примеры использования
This means these messages must contain a valid return email address and a mechanism for allowing people to unsubscribe (amongst other things).
In terms of the unsubscribe, it really just means providing an acknowledged way that people can unsubscribe from your electronic message in future, if they wish to do so.
It's become one of many mailing lists to which I really should unsubscribe , because although I continue to receive the messages, I delete them almost immediately.
Most well-known software companies are happy to obey the wishes of their customers, if they want to unsubscribe from a mailing list.
If you want to unsubscribe for any reason, please just reply with unsubscribe as the subject.
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