More and more recipients will mark unwanted e-mails as SPAM, lowering the reputation for sending e-mail server and making it harder for spam-filters to detect the real spam. The List-Unsubscribe header was introduced to mitigate this problem and to make it easier for recipients to unsubscribe from unwanted e-mails.
Gmail and Yahoo recently announced that they will demand big e-mail senders to include these headers in marketing emails beginning in February 2024.
In our latest release, we include native support for List-Unsubscribe headers to facilitate better deliverability.
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