*posted there*
(besides that: I'm not sure it's "the way it works" ... trying to send an email by [email protected] from the mail server yyy.com could be interpreted as an attempted abuse (which the error obviously points to), so it would rather be a fix than anything else.)
(besides that: I'm not sure it's "the way it works" ... trying to send an email by [email protected] from the mail server yyy.com could be interpreted as an attempted abuse (which the error obviously points to), so it would rather be a fix than anything else.)