Your email reputation is essential to establish and maintain. You need to have an "A" rating with a score over 90 on scales like SenderScore. Authenticate your email IP address by publishing SPF, SenderID, DKIM, and possibly separate transactional and promotional emails. Pay attention to complaints and adjust campaigns accordingly. Stay off blacklists by regularly scanning IPs and domains. Only send emails to subscribers who have opted in for that specific type of email.
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