2.2.82 [RFC5545] Section 3.8.4.5 Related To

V0175:

The specification describes the RELATED-TO property.

Microsoft Office Outlook 2007, Microsoft Outlook 2010, Microsoft Outlook 2013, Microsoft Outlook 2016, Microsoft Outlook 2019

Outlook does not implement the RELATED-TO property. Outlook does not import or export the RELATED-TO property.