Senders Must Follow Through Within Two Days The Requirement Does slovakia email list 434238 contact leads Not Apply To Purely Transactional Messages Use Arc Headers To Authenticate Email Forwarding Bulk Senders Who Regularly Forward Emails Must Implement Arc Headers This Identifies The Sender As The One Forwarding The Message It Also Checks The Previous Authentication Status Before Forwarding Keep Userreported Spam Below Thresholds Senders Should Consistently Keep Spam Rates Below 01 1 For Every 1000 Emails Temporary Spikes In The Spam Complaint Rate Should Not Reach Or Exceed 0

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