[Resources] Email Deliverability


Chief HubSpot Consultant at MFrankJohnson.com and author of the Perfect HubSpot Series, Frank contributes daily at Community.HubSpot.com where he's been voted #1 HubSpot Solutions Author in the USA. As a lifelong learner and college educator, Frank builds powerful HubSpot Marketing automation solutions for HubSpot Enterprise and HubSpot Pro users, and publishes a wide range of inbound content for the freelance HubSpot consultant community.
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A few resources that may help make sense of the many factors affecting email deliverability.

Essential

Good To Know

Also Useful

Additional Resources

The following big dogs are responsible for sending / testing over 25% of the world's non-spam email, so should probably consider anything on their radar a priority concern.

As a side note, SparkPost also has some excellent information about ramping up sends to large lists (>1M contacts) and warming up sends to lists in general. Just excellent stuff every email marketer should indelibly impress in their brains.

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Chief HubSpot Consultant at MFrankJohnson.com and author of the Perfect HubSpot Series,...