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by lightlyused 3677 days ago
What is a professional grade IP?
1 comments
tasteup 3677 days ago
ESPs warm up their ips and prepare them before putting them into production, where they're tasked with sending billions of emails on a regular basis. These IPs used in production are considered "professional grade".

https://sendgrid.com/docs/Classroom/Deliver/Delivery_Introdu...

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