2.2.106 [RFC5546] Section 3.2.1 PUBLISH

V0229:

The specification describes the "PUBLISH" value for the METHOD parameter.

Microsoft Exchange Server 2007, Microsoft Exchange Server 2010, Microsoft Exchange Server 2013, Microsoft Exchange Server 2016, Microsoft Exchange Server 2019

Microsoft Exchange Server imports and exports PUBLISH-type iCalendar objects as REQUEST-type iCalendar objects. See section 2.2.107 for details.