Hi JPR
that depends on whether you are using a BT email address of a non BT email address
If it is BT then its the following
Outgoing
Server - smtp.outlook.com
port – 587
connection type – TLS
make sure the outgoing server requires authentication and authenticate with the same details as the incoming server
If this is non BT
Outgoing
Server - smtp.btconnect.com
port – 25
SSL/TLS - no
make sure the outgoing server requires authentication and authenticate with the primary email address and password
if this does not work turn authentication off