This is the Postfix program at host whitemail.nildram.co.uk.
I'm sorry to have to inform you that the message returned below could not be delivered to one or more destinations.
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 message returned below.
The Postfix program
sandy.siu@jdrcables.com: host mail.jdrcables.com[84.12.8.45] said: 550 sandy.siu@jdrcables.com... No such user (in reply to RCPT TO command)
satpro@jdrcables.com: host mail.jdrcables.com[84.12.8.45] said: 550 satpro@jdrcables.com... No such user (in reply to RCPT TO command)
spicer@jdrcables.com: host mail.jdrcables.com[84.12.8.45] said: 550 spicer@jdrcables.com... No such user (in reply to RCPT TO command)
springer@jdrcables.com: host mail.jdrcables.com[84.12.8.45] said: 550 springer@jdrcables.com... No such user (in reply to RCPT TO command)