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In a single sentence, I will only say that it is best for email marketing because “The real power of HubSpot’s marketing email tool comes when it’s combined with CRM and its marketing automation platform. With HubSpot, you can create detailed email campaigns that give each contact a tailored experience based on the information you’ve gathered within the CRM. And the most fabulous that it provides free email marketing for the whole life.”
It has several salient features which can not be matched by others such as-
-Drag and Drop email template,
-It provides smart features while mailing,
-Free for life,
-Wide range of reports etc.