Hello,
Friends we can check our internal exchange services which we hosted on internet for global access,
Test from this site https://www.testexchangeconnectivity.com/
1, Exchange ActiveSync
2, Exchange ActiveSync Autodiscover
3, Synchronization, Notification, Availability, and Automatic Replies (OOF)
4, Service Account Access (Developers)
5, Outlook Anywhere (RPC over HTTP)
6, Outlook Autodiscover
7, Inbound SMTP Email
8, Outbound SMTP E-Mail
