How do I sync contacts with Hornet.email? Ing. Oliver Baltz December 15, 2022 10:14 Updated Indirectly via "CardDAV" with a URL in this format: https://hornet.email/SOGo/dav/EMAIL ADDRESS/Contacts/personal/ Related articles Why my phone numbers after synchronization have a wrong area code? Is sync.blue® an independent, central address book? Which apps is sync.blue® compatible with? Comments 0 comments Please sign in to leave a comment.