Im having difficulties sending emails with iPhone?
The vast majority of email providers will allow you to use their SMTP for sending email even when using a mobile device. There are some email providers that do not allow this. In these cases we suggest you use an alternative SMTP setting such as smtp.o2.co.uk We recommend you use your own ISP outgoing server with your ISP username and password. If your ISP doesn’t support this you can use smtp.o2.co.uk adding your full O2 email address and O2 password.