RR

Hello ARIS community!
When I start my governance process, I don't receive a notification email, however I don't get any error. It tells me that my process was executed correctly, but the email just doesn't arrive to the mails. I was searching in the community and I saw that some people had the same problem. I tried the same solutions, but my problem continues. 
Any solution that you can give me, I would appreciate it very much.
Thank you very much!