DocuSign is capable of sending DMARC compliant email when using their Custom Email Domain set up. DocuSign is a Financial Tracking Platform and is often used by Accounting and Finance.
The link just below is a resource on how to configure this source to send DKIM-aligned email on your behalf. You will complete this configuration by (1) following the source's instructions and (2) adding the required entries into your DNS. https://support.docusign.com/s/document-item?language=en_US&bundleId=rrf1583359212854&topicId=kpy1624481491369.html&_LANG=enus
The link just below is a resource on how to configure this source to send SPF-aligned email on your behalf. You will complete this configuration by (1) following the source's instructions and (2) adding the required entries into your DNS. https://support.docusign.com/s/document-item?language=en_US&bundleId=rrf1583359212854&topicId=kpy1624481491369.html&_LANG=enus