Some of my users get the following error when trying to send email ?
Is scalix blocking the mail ?
"The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'addrupdate-30065233731-26606155--56575 ... .plaxo.com'. Subject 'Re: Your latest info', Account: 'Work', Server: 'scalixmail.pitchpointsolutions.com', Protocol: SMTP, Server Response: '550 Denied due to spam list', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79"