Dynamic distribution groups maintenance

Published Feb 6, 2024 • Updated May 1, 2026

Overview

DDGs automate membership via filters—great until attributes drift and mail goes to wrong people.

Hygiene tasks

  1. Document filter LDAP/OPath; store in runbook.
  2. Validate attributes populated by HR sync (department, office, title).
  3. Test with preview before major mail campaigns.

Pitfalls

Complex filters impacting EXO performance—keep logic simple.

Decommission

When replaced by Entra dynamic groups + Teams channels, sunset formally with stakeholder sign-off.

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