Simon:
> All of a sudden (Monday morning - typical) we have starting getting this
> error:
>
> postfix/smtpd[4696]: lost connection after DATA (0 bytes) from XXX...
Your server loses the SMTP connection.
> Which is resulting in the following bounce back to senders:
>
> Server refused mail at END OF DATA - 554 5.7.1 This message has been
> record for domain sendingdomain.co.nz)
That does not come from Postfix. It lost the connection, remember?
Someone put a "police agent" system between your server and the internet.
Wietyse
