ClickDimensions is capable of sending DMARC compliant email because they support custom SPF and DKIM configurations that achieve DMARC alignment. ClickDimensions is an Email Marketing Platform and is often used by Marketing, Product or Application Development teams. Check out their DMARC blog article for greater context on the necessary changes: https://support.clickdimensions.com/hc/en-us/articles/360025288771-Using-DMARC-with-ClickDimensions-Email
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.clickdimensions.com/hc/en-us/articles/115001163534-DKIM-Signing
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.clickdimensions.com/hc/en-us/articles/115001162874-SPF-Records-For-ClickDimensions