Hello !

I get the impression that when the client's email address is false we lose the possible message of the receiving server saying that the address does not exist.

I just did the following test:
- sending a message from gmail to a fake address : I get an automatic error message.

- sending a message from Odoo to a fake address from my agent account: I do not receive any automatic error          message.

Is there a way to verify the existence of the email address before sending?
Eg if the email address is false or not found Odoo block sending and displays an "Invalid Address" message?

any ideas ??