https://www.rfc-editor.org/rfc/inline-errata/rfc5322.html
rfc5322
https://techcommunity.microsoft.com/idea/microsoft365developerplatform/request-for-rfc5322-compliance-header-folding-for-outlook-add-in/4200158
Request for RFC5322 compliance: header folding for outlook add in | Microsoft Community Hub
RFC 5322 (section 2.2.3) supports header folding so headers with more than 998 characters can be used in email.unfortunately office-js doesn't support...
request for