FAQs in this section

What is a bounce message and error code?

What are different bounce categories?

What are the different traditional bounce codes?

What are the different enhanced bounce codes?

Can I customize the bounce messages?

I need a detailed report regarding a bounce message. How can I get it?

What is a hard bounce?

What is a general bounce?

What is a 'DNS failure' error?

What is a 'Mailbox full' error?

What is a 'Message too large' error?

What is a 'Mail block - relay denied' error?

What is a 'Mail block - general' error?

What is a 'Mail block - spam detected' error?

What is a transient bounce?

What is a challenge or response bounce?

What is a 'Bounce - no email address returned' error?

What are Quarantined emails in Microsoft Outlook?

Why do I have to review and manage quarantined emails in Microsoft Outlook?

Where can I see my Quarantine email notifications?

Where can I review and manage Quarantined Emails in Microsoft?

How will I know if my emails have been quarantined?

How do I manage quarantined emails?

What does getting an Undelivered Mail Returned to Sender message mean?

Why are my emails being returned as undelivered?

What can I do to resolve undelivered email issues?

How do I prevent my emails from being returned as undelivered?

What are undelivered emails?

How do I know if my emails have bounced?

What are the different error codes?

We have two different SMTP error codes:

Traditional bounce codes - They are direct bounce codes that give a basic email error definition.
Enhanced bounce codes - They are advanced or more detailed email error messages that explain the SMTP error.

To know more about Email Bounces and Error Codes, click here.

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