4.1.6 Email Bounce Error Reason Email Address No Longer Accepts Or Forwards Messages: Delayed Message The recipient’s email address no…

4.1.5 Email Bounce Error Reason Valid Email Address: Delayed Message The email message has not yet been delivered even though…

4.1.4 Email Bounce Error Reason Multiple Mailboxes For Recipient: Delayed Message The recipient’s email address belongs to more than one…

4.1.3 Email Bounce Error Reason Email Address Malformed: Delayed Message The recipient’s email address is not a valid email address…

4.1.2 Email Bounce Error Reason Domain Name Of Email Address Not Valid: Delayed Message Because the recipient’s email provider says…

4.1.1 Email Bounce Error Reason User Name In Email Address Not Valid: Delayed Message Mailbox of the recipient’s email address…

4.1.0 Email Bounce Error Reason Unknown Issue With Recipient’s Email Address: Delayed Message The email message has not yet been…

4.0.0 Email Bounce Error Reason Unknown issue: Delayed Message Because of an unknown issue the email message could not be…

Not all the time email gets delivered due to multiple bounce reasons. There are certain number of bounce reasons due…

Think once, none of your mail is going through to a major mailbox provider (MBP). Instead of the bounce rates,…