I have a inbound connector from my server mail to Office365
but i don't know if i send a message from my server Mail to Office365 i have this error
Error: "550 5.7.64 TenantAttribution; Relay Access Denied [ValidationStatus of '' is EmptyCertificate] [DS3PEPF000099DC.namprd04.prod.outlook.com 2024-03-30T03:31:34.132Z 08DC46295CDBFA83]" while connected from XXXXXX (xxxxxxxxx) to xxxx.mail.protection.outlook.com (xx.xx..34)
