FAQs in this section
What is a bounce message and error code?
What are different bounce categories?
What are the different error codes?
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 transient bounce?
What is a challenge or response bounce?
What is a 'Bounce - no email address returned' error?

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

The recipient’s email server has blocked your email because the content resembles spam email content. 
This mail block is often triggered because, 
  • the recipient server is set up to detect spam emails 
  • your reply-to address or brand name has a low reputation 
We treat this as a soft bounce because some mail servers and email providers respond with false or incorrect error codes.

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