TeklaMessagingException: Security check failed. https://prod.teklamodelsharing.com is not a trusted destination address

Last updated September 14, 2018 by Tekla Global Support tekla.structures.ghd@trimble.com

Environment: 
Not environment-specific

TeklaMessagingException: Security check failed. https://prod.teklamodelsharing.com is not a trusted destination address

Question:
I have difficulties to log in to the Model Sharing service and see this message in the modelsharing log file:
TeklaMessagingException: Security check failed. https://prod.teklamodelsharing.com is not a trusted destination address

Answer: