Branded Return Path (envelope_from) on Dedicated IPs

A document by KCS Integration on behalf of 9bbab3ec0a572302bfd523ca8d7abc5e747191b7 on Mar 5, 2018Last modified by Roxann McGlumphy on Sep 18, 2018
Version 5Show Document
  • View in full screen mode

Issue Description

Customers on Dedicated IPs are able to set up additional branding within the Marketo sending infrastructure.  You are able to set up a branded 'envelope_from' so the From Domain used by the Marketo sending servers is associated with your brand instead of with Marketo.


This enables you to further isolate your sending reputation to your own brand and email activity.  This can improve delivery rates to email networks looking for this level of alignment (generally smaller B2B domains but this can also help with AOL and Gmail).  Branded 'envelope_from' is also key for authentication using DMARC, as it will allow you to align the domains in your email headers.



Issue Resolution

Marketo's default return path/envelope_from domains include:


San Jose datacenter -

London datacenter -

Ashburn datacenter -

Sydney datacenter -




  • Standard:
    • Dedicated IP
    • envelope_from:


  • Branded:
    • Dedicated IP
    • envelope_from:




To implement this, you will need to chose a sub-domain of your choice for this branding. The subdomain must be unique. You cannot use your landing page or tracking link domains for your branded return path.  Once you have chosen your sub-domain, submit a case to Marketo Support with those details and we connect you with our Deliverability team, who will walk you through the process.


Who This Solution Applies To
All Marketo instances sending from Dedicated IPs


Is this article helpful ?