3 ms·
That's why senders should use the List-Unsubscribe header. GMail will prompt you to unsubscribe rather than blindly classify the message as SPAM. http://www.li
by Moto7451 13y ago
That's why senders should use the List-Unsubscribe header. GMail will prompt you to unsubscribe rather than blindly classify the message as SPAM.
http://www.list-unsubscribe.com http://www.list-unsubscribe.com
https://support.google.com/mail/answer/81126?hl=en https://support.google.com/mail/answer/81126?hl=en