Tuesday 15 June 2021

Exclaimer Cloud and Microsoft 365 - Internal Emails sent to distribution groups send external to come back in again

An issue with Exclaimer Cloud and Microsoft 365 where an internal email sent to an internal distribution group ends up getting sent via the MX records.

This can lead to internal emails hitting external spam filters and getting blocked.

The fix is to set ReportToOriginator to TRUE.  this can be done via the AD users and groups but if they are a number of groups PowerShell the way to go.

Get-ADGroup -Filter * | where GroupCategory -eq Distribution | Set-ADGroup -Replace @{ReportToOriginator=$true}

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