Skip to main content
English (US)
Deutsch
Español
Français
Submit a request
Sign in
Company
About Us
International Offices
Management
Case Studies
Privacy Policy
Legal notice
Services
365 Total Protection Compliance & Awareness
365 Total Protection Enterprise Backup
365 Total Protection
365 Total Backup
365 Permission Manager
Security Awareness Service
AI Recipient Validation
Mailbox Migration Tool
Advanced Threat Protection
Spam & Malware Protection
Email Encryption
Email Continuity Service
Signature and Disclaimer
Email Archiving
VM Backup
Hornet.email
News
Blog
Publications
Webinars
Podcast
Backup Bible
IT Knowledge Base
Career
Job Vacancies
Hornetsecurity as an employer
Employees introduce themselves
Initiative Application
Privacy Policy for applicants
Partner
Partner Program
Hornetsecurity as an employer
Partner Portal
Hornetsecurity KnowledgeBase
Email Authentication
FAQ
FAQ
How do I set up allow listing for sender validation? (SPF-, DKIM- or DMARC-Fail)
How to set up DKIM?
What is SPF?
What is DKIM?
