New Sophos Support Phone Numbers in Effect July 1st, 2023

5.7.51 TenantInboundAttribution

When sending an email from abroad to my email, the following message appears 5.7.51 TenantInboundAttribution 

Also, when adding an external connection‎ , it is not accepted 

Please solve

Added tags
[edited by: Raphael Alganes at 4:19 AM (GMT -7) on 5 Jun 2023]