FaxBack NET SatisFAXtion 9.0 - Fax Server Manual - Manual (Page 97)

Click OK.
Allow TNEF
In order for the Client Suite’s Fax Options tab to reach the fax server, TNEF must be enabled.
Run the powershell command:
set­remotedomain ­identity fax.company.com ­tnefenabled 1
Enable Message Relaying
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