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Exostar’s Managed Microsoft 365 Messaging from File Drop Inbox

Sponsor Administrators and Team Managers now have a way initiate or respond to correspondence with external partners from within the compliant channel. Keeping both sides of the conversation inside the File Drop Inbox in Exostar’s Managed Microsoft 365 preserves the audit trail and maintains the protections that File Drop was designed to provide.

Send Message

Details

  • Compliant File Drop and Send Files Externally features must be enabled
  • Send Message button displays above File Drop Inbox
  • Compose Message form is similar to Send File Externally, without attachment (To/CC, BCC, Subject and Message)
  • Rich text formatting of message
  • Required disclaimer acknowledgment
  • Sent messages display in File Drop Inbox

Reply

Details

  • Compliant File Drop and Send Files Externally features must be enabled
  • Reply button displays in message preview (next to Export)
  • Compose Message form is similar to Send Message
  • Required disclaimer acknowledgment
  • Option to include message being replied to in reply (does not include nested replies)
  • Sent messages display in File Drop Inbox
Updated on October 21, 2026

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