Branded Return Path (envelope_from) on Shared or Trusted IPs

A document by KCS Integration on behalf of 9bbab3ec0a572302bfd523ca8d7abc5e747191b7 on Mar 5, 2018Last modified by Kiersti Esparza on May 31, 2018
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Issue Description

Customers on Shared or Trusted 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 envelope_from (also known as return-path) domains include:

 

San Jose datacenter - @em-sj-77.mktomail.com

London datacenter -  @eu-lon-188.mktomail.com

Ashburn datacenter - @potomac1050.mktomail.com

Sydney datacenter -  @snsmtp.mktomail.com

 

 

 

Process:

 

To implement this, first reach out to your CSM to confirm that branded return path addresses are included in your Marketo package.  Branded return path for instances on a Shared IP would be a paid addition to your Marketo Subscription.  There is no charge for instances on the Trusted IP range. Then you will need to chose a sub-domain of your choice for this branding, and set up 2 DNS entries depending on which datacenter your Marketo instance is on:

 

-If your Marketo instance is on the shared range in San Jose, the configs would be:

 

   IN MX (your subdomain):  em-sj-77.mktomail.com
   IN TXT (your subdomain) “v=spf1 include:mktomail.com -all”

 

-If your Marketo instance is on the shared range in Ashburn, the configs would be:

 

   IN MX (your subdomain):  potomac1050.mktomail.com
   IN TXT (your subdomain) “v=spf1 include:mktomail.com -all”

 

-If your Marketo instance is on the shared range in London, the configs would be:

 

   IN MX (your subdomain):  eu-lon-188.mktomail.com
   IN TXT (your subdomain) “v=spf1 include:mktomail.com -all”

 

-If your Marketo instance is on the shared range in Sydney, the configs would be:

 

   IN MX (your subdomain):  snsmtp.mktomail.com
   IN TXT (your subdomain) “v=spf1 include:mktomail.com -all”

 

Once that DNS setup is completed, submit a case to Marketo Support with those details and we can complete the process by implementing that branding for your instance's emails.

 

Who This Solution Applies To
All Marketo instances sending from Shared or Trusted IP ranges.

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