Just had the following message:
This Message was undeliverable due to the following reason:
Each of the following recipients was rejected by a remote mail server.
The reasons given by the server are included to help you determine why
each recipient was rejected.
Recipient: <****@********.co.uk>
Reason: 5.7.1 This system is not configured to relay mail from <******.*******@ntlworld.com> to <****@******.co.uk> for **.***.***.**
Please reply to
Postmaster@ntlworld.com
if you feel this message to be in error.
Anyone know what this means?