Still can't send the newsletter to these addresses: <[email protected]> (reason: 550 5.1.1 <[email protected]>... User unknown) <[email protected]> (reason: 550 5.1.1 <[email protected]>... User unknown) <[email protected]> (reason: 550 [email protected] unknown) <[email protected]> (reason: 550 [email protected] unknown) Please correct them with me. Thanks 73 Michael N7MR