Gmail, Outlook.com, and Yahoo Mail have each developed unique spam filtering formulas to deliver the email their users want and protect them from malicious messages. However, these filters also end up blocking messages from legitimate marketers. On average, 20 percent of permission based email never reaches its intended destination—the inbox.
To reach the inboxes of the Gmail, Outlook and Yahoo users, it’s essential for marketers to have a thorough understanding of each mailbox provider.
Read the guide to discover: