Exchange Delivery Error 5.2.0

User gets an error message when sending email from an external email address to a public folder email using exchange 2007

Delivery has failed to these recipients or distribution lists

#< #5.2.0 smtp;550 5.2.0 STOREDRV.Deliver: The Microsoft Exchange Information Store service reported an error. The following information should help identify the cause of this error: "MapiExceptionNotAuthorized:16.18969:D0130000.....


  1. Logon to the public folder (in Outlook client is easiest)
  2. Right click -> Permissions -> Change -> “Anonymous” User to Create Items (Contributor)
  3. Should do the trick work 🙂

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