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Can I customize the return-path header with Mailjet?

N.Makarov
  • Updated
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By default the Return-Path header points to "bnc3.mailjet.com", but you can of course customize this address to point to your own domain instead.

To create a custom return path you will have to create a CNAME record in the DNS zone of your sending domain that points to the sub-domain we use as the envelope address "bnc3.mailjet.com". You will have to create a sub-domain that looks like bnc3.yourdomain.com.

Here is an example:

bnc3.yourdomain.com. IN CNAME bnc3.mailjet.com.


Once this has been done, get in touch with us. Open a ticket with our support team and provide us with the following information so that we can activate your personalized return route:

  • The API key you want to customize the return-path domain on.
  • The CNAME record you configured: a screenshot or text version of the record. 
Before sending your request for a personalized return-path header, be sure to validate on your Mailjet account the domain that will be used. This step will be requested by our support team in order to proceed with the activation.
Please note that this option is available only for paid accounts and you can only have one active return-path per API key.

For more information about return-path customization, do not hesitate to visit the following blog.

Mailjet reserves the right to deny the activation of a custom return path on accounts that are not compliant with our Acceptable Use Policy.