Hi, The Onspeed servers you use to send the mail through are being blocked by the recipient's mail server for some reason. There isn't much you can do about this, appart from stopping the Onspeed email service and reverting back to your ISPs server. Thanks. Andrew. -----Original Message----- From: access-uk@xxxxxxxxxxxxx on behalf of Chris Hallsworth Sent: Thu 27/07/2006 08:37 To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] [Fwd: Returned mail: see transcript for details] Hi all, just would like to know what all this babble means please? Thanks.