Capable of generating DMARC compliant email for others? yes
Capable of signing email with DKIM for others? yes
Capable of sending SPF compliant email for others? yes
Notes on Capabilities
DMARC: DMARC compliance through SPF and DKIM.
DKIM: Email sent via Marketo can be made DMARC compliant by configuring DKIM: https://docs.marketo.com/display/public/DOCS/Set+up+a+Custom+DKIM+Signature
SPF: Marketo's documentation describes how to setup SPF, but Marketo always uses their own domains in the bounce address unless you contact support and arrange to white label the return-path address. Marketo support provides additional information to set SPF correctly.
When deploying DMARC, domain owners often find new sources of email.
Domain owners then wonder if the source is capable of sending DMARC compliant email.
This directory contains information on the capabilities of various sources of email.