Can't setup smtp under Email Settings for an Office365 email address (i.e. smtp.office365.com)

@Kevin_Harris, there are multiple servers in our installation and the servers do not have public IP addresses. Moreover the addresses we assign may change because it is a dynamic cluster. I am not sure how to handle this, but I do not think that us providing all IP addresses of each of the machine in the cluster is the way to go. I am puzzled why it is working for another user who also uses office365 mail server…

Regards,
Mark

Ok. So, It seems that I can not use this solution and I really don’t know how to fix this and make it production safe. I’ll just have to reset the smtp settings and use the default Backendless setup.