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? no
Notes on Capabilities
DMARC: DMARC compliance through DKIM signing.
DKIM: Constant Contact and self-published authentication describes how to setup DKIM using your own domain: https://knowledgebase.constantcontact.com/articles/KnowledgeBase/5932-self-publishing-for-authentication?lang=en_US
SPF: no notes
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.