Our O365 tenant can't receive emails ONLY from other O365 tenants. Possible DNSSEC issue
Budget: $30 – $250 USD
Our O365 tenant can't receive emails ONLY from other O365 tenants. The issue started when we tried applying DNSSEC to DNS and matching it with our registrar. We've since removed the DNSSEC settings but email is still not coming in from other O365 tenants. Help!