Morning All,
Solution for MFA Server Authentication POP error message
When you getting below error just check 2 things
1 . Are you trying to setup from your corporate company , If yes you won’t get it
2. Check the Inbound Firewall rules then try to setup 433 outbond port for css.phonefactor.net,pfd.phonefactor.net and pfd2.phonefactor.net
Have good day 🙂
KMI TechBiz 