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Build sending reputation on a new domain or IP with a structured volume ramp, engaged audiences, and careful monitoring.
Never start warming a domain without proper authentication. Failing SPF or DKIM during warmup damages your reputation from day one.
Pull subscribers who opened or clicked in the last 30 days. These are your warmup audience. High engagement signals tell mailbox providers you are a wanted sender.
These free tools show your domain reputation, spam rates, and authentication results at Gmail and Outlook. Essential for monitoring warmup progress.
Register with major ISPs (Yahoo, Outlook, AOL) to receive complaint notifications. Process complaints by immediately suppressing those addresses.