• I have an office 365 account with the server ip trusted so it will send mail to only the same office365 email domain with no problems when auth is NONE and I use the provided host wchaonline-com.mail.protection.outlook.com

    the below FAILS with the exception error show in this post:
    smtp.office365.com
    port 587 (25 and 587 both fail)
    STARTTLS
    LOGIN

    I am struggling with this to work, any ideas appreciated.

    5.2.0 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message Cannot submit message. …, 17.43559:0000000094000000000000000200000000000000, 20.52176:140F77841100101038020000, 20.50032:140F77848117101044020000, 0.35180:02011330, 255.23226:5A020000, 255.27962:0A000000, 255.27962:0E000000, 255.31418:0201E165, 16.55847:C8000000, 17.43559:0000000088010000000000005000000000000000, 20.52176:140F7784110010100B002900, 20.50032:140F77848117101003003600, 0.35180:C9000000, 255.23226:0A004100, 255.27962:0A000000, 255.27962:32000000, 255.17082:DC040000, 0.27745:0A006400, 4.21921:DC040000, 255.27962:FA000000, 255.1494:E9000000, 0.37692:0F010480, 0.44092:0F010480, 0.40348:00000000, 0.34608:0F010480, 0.55056:00000000, 0.42768:302E3131, 0.56112:31373A43, 0.52807:32303031, 4.33016:DC040000, 7.40748:010000000000010B2D346361, 7.57132:000000000000000063613534, 1.63016:32000000, 4.39640:DC040000, 8.45434:23692E3E6EEB514288CBE49DF5D97DBE

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