Disable TNEF, Fix WINMAIL.DAT Issue with MS 365
Enter the following command in powershell after connecting to 365. This will fix issues with various external mail clients receiving winmail.dat attachments for all mail leaving 365 (default)
Set-RemoteDomain Default -TNEFEnabled $false
An alternative is to disable TNEF to certain recipient domains with the following commands:
New-RemoteDomain -Name flash.net -DomainName flash.net
The above adds a new recipient domain.
Set-RemoteDomain -Identity flash.net -TNEFEnabled $false
Disable TNEF for selected domain.
Get-RemoteDomain -Identity flash.net | Select TNEFEnabled
Check TNEF status.
Tags:
powershell