Error 451 Local internet

[Neilanatech]

Hi, We have just started having trouble sending emails via outlook, we can receive them but the if we send them they just sit in the outbox with Error451 message - any ideas greatfully received.

Thanks

Neil

[Burkem5]

HI there Neilanatech

I would need a little bit more info from you.

1 is the email its self with BT ?
2 what outgoing server are you using - smtp.btconnect.com / smtp.outlook.com 

3 what is the full error message 

4 are you using a specialist set up  ?  E.g. Small business server - hosting your own exchange etc

if you can get me this information that would be great

Thanks 

Burkem5