I'm working with a client to setup the SAP for their domain where the SAP domain is 'send.company.com' (well, similar anyway).
They are currently using a different marketing platform and will be migrating over to Marketing Cloud over a re-platforming phase.
In the meantime, they need to send from both platforms (their current marketing platform and Marketing Cloud).
I'm aware that there are multiple DNS entries used by the Sender Authentication Package (SAP), but from this list, the only two that are currently used by the existing platform are:
send.company.com(two MX records with a priority value of
send.company.com(TXT record for SPF)
I know that the send.company.com MX record is only required for outbound email (SFMC uses a separate reply.send.company.com MX record to route replies). So, I should be able to add the additional MX records for Marketing Cloud (I assume the priority doesn't matter either, as it won't be used to route inbound mail).
Also, while there is an existing SPF record for send.company.com, which looks like this:
v=spf1 include:mktomail.com include:mailgun.org -all
I know that you can add additional
include: keywords to existing records, e.g. this can be modified to:
v=spf1 include:mktomail.com include:mailgun.org include:cust-spf.exacttarget.com -all
Does anyone know if there is an issue with setting the same subdomain as SAP in Marketing Cloud, while also using it concurrently with a different marketing platform?
This would be quite a common scenario for customers migrating to Marketing Cloud and wanting to retain their existing subdomain. I believe that in theory, this should be possible.