By Sara Guappone, Director of Marketing at Donorbox Marketers face an uphill battle for email subscriber attention. The average person receives over 120 emails each day, and global email volume is expected to hit 392 billion messages per day by the end of this year. Nonprofits are in the thick of it: 86% use email marketing, sending an average of 62 messages per subscriber annually. Nonprofit marketers trying to cut through the noise of crowded inboxes have to ask: Is email still worth the effort? Yes.