Hi If someone tries to send me a mail, they get this message below and they think I havent got the mail. I DO get the mail however sometimes twice. I do tell them to ignore the message. Please note there is a reference to Tekne.co.uk where I used to work - over two years ago- with my email address there noted as well. It seem like their email system has hijacked my system and caused some problem. Any ideas anyone ?? I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <dave@tekne.co.uk>: host tekne-co-uk.mail.protection.outlook.com[104.47.5.36] said: 550 5.4.1 All recipient addresses rejected : Access denied. AS(201806271) [HE1EUR02FT019.eop-EUR02.prod.protection.outlook.com] (in reply to end of DATA command)