The bounce report includes the date when the message was bounced, the email address that bounced and the reason why the message could not be delivered. It may thus include email addresses that were found in your mailbox but could have been sent manually. The report is for your entire Google account and not specific to any email campaign. Go to Add-ons > Mail Merge > Campaign Reports > View Bounced Email to view your bounce report. It parses the text of the bounced emails and prepares a report detailing the reasons why the message may have bounced and when the bounce occurred. Mail Merge can automatically find all bounced email messages that have not been delivered by Gmail. Multiple recipients have reported your emails as spam and Gmail has thus temporarily suspended delivery of emails from your address.You have exceeded the email sending limit and Gmail is not sending emails until the limit resets in the next 24 hours.Your email messages contain text or links that are flagged as spam and thus the spam filters have quarantined or blocked delivery.The recipient’s mail server has incorrect MX records.The domain in the email address is incorrect.The recipient’s mailbox is full and cannot accept new email messages.The recipient’s email address is invalid and may not exist.Mail Merge sends email through your Gmail account and all bounced email messages have the sender as email messages sent through Mail Merge can bounce for a variety of reasons. An email message is bounced or returned to the server that sent it when the message cannot be delivered to the intended recipient.

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