EWS: Detect EWS disabled on tenant
O365: fix https://github.com/mguessan/davmail/issues/520, print number matching in headless mode
Graph: fix for https://github.com/mguessan/davmail/issues/522 user reports transactionId is not always unique, reimplement EWS approach based on calendaruid, keep transactionId to block duplicate creation over Graph
Caldav: refactor ICSBufferedWriter to remove recurion and avoid stack overflow with very long lines
LDAP: lookup LDAP_TO_CONTACT_ATTRIBUTE_MAP before CONTACT_ATTRIBUTES
DavMail 7.0.0 released
7.0.0 release
Prepare 7.0.0 release