hi @Monica_Stavi !
I remember seeing some others having a similar error due to the email not being a “@gmail.com” (did a quick search and found this other thread (kudos to @Yo_its_prakash ) - so give it a check if your email admin can do this change for you (maybe first try with a regular @gmail.com just to confirm if it works 
)
Please let me know if that worked!
Cheers!