Bitwarden verficiation email cannot send

hey guys,

i am new to bitwarden and apologize if my question is maybe easy to handle.

i set up bitwarden in a virtual machine. my os on this virtual machine is ubuntu desktop lts 22.04. the virtual machine was set up on vsphere.

i can open my bitwarden vault and add folder etc. but i want to verify my account to test a tqwo person company and the features for a company as trial. every time i hit the send verification email button i receive a error: “An unhandled server error occured”

i tried different solutions in my global setting env file for bitwarden, but nothing worked. after each change in this file i run the ./bitwarden.sh restart command.

here the photos of my env file

i hope someone cann give me the missing hint to get this verification email.

kind regards

chris