On 10/03/2023 19:57, Nicolas George wrote:
Vincent Lefevre (12023-03-10):Mail may still be sent via the ISP's smarthost.Unless the ISP's relay refuses to take mail not from the ISP's domain, like I have seen a few times.
Or use an outgoing mail relay, such as mail gun, mail channel, they even have free budgets.
Corey H.