2576385 - E-Mail Reply Ticket Error 'This message was not accepted due to domain (domain.com) owner DMARC policy [...]'

Your reply from a Ticket but the reply is not sent and you instead receive a delivery error:

'This message was created automatically by mail delivery software. A message that you sent could not be delivered to all of its recipients. This is a permanent error. The following address(es) failed: [...]  SMTP error from remote mail server after end of data: [...] This message was not accepted due to domain (domain.com) owner DMARC policy [...]'

SAP Cloud for Customer

Prerequisite:
You have maintained an email channel channel@domain.com for an In- and Outbound email scenario and the domain (in our example domain.com) was maintained in the E-Mail and Fax settings in the Business Configuration workcenter.
You reply in a ticket using the from address channel@domain.com and the recipient also shares an e-mail address with domain.com and receive a more detailed version of the error:

'This message was created automatically by mail delivery software. A message that you sent could not be delivered to all of its recipients. This is a permanent error. The following address(es) failed: [...]  SMTP error from remote mail server after end of data: [...] This message was not accepted due to domain (domain.com) owner DMARC policy [...]'

DMARC is not supported in SAP Cloud for Customer.

This is currently not supported and using DMARC will therefore not work.

This message was not accepted due to domain (domain.com) owner DMARC policy, DMARC, E-mail, email, Ticket, Reply, domain, , KBA , LOD-CRM-SRP , Service Request Processing , Problem