Hi guys,

this is my first email here.
In a private matter I used the reply button on some Lufthansa Feedback topic.

Then I got a Office 365 rejection.

Status code: 550 5.7.1

Sender Address: customer.relations+SRS=mcOit=3G=itnomad.de=uwe.arn...@lufthansa.com
Recipient Address:      customer.relati...@lufthansa.com

Error Details
Error: 550-5.7.1 This email was rejected because it violates our security policy. 550 5.7.1 Die digitale Signatur der E-Mail ist ung?ltig.
Message rejected by:    mail.alpha-com.de

Notification Details
Sent by:        FRWPR09MB7955.eurprd09.prod.outlook.com

Would be great if you could refer me to the correct mail admins. this doesn't look right.

Best regards,
Uwe

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