Check your email provider’s outgoing server address.If you’ve set up a POP3 or IMAP email account on your phone and you can receive emails but can’t send them, check the following details with your email service provider: Troubleshooting steps if you can’t send an email When using Dodo email on the Vodafone network, you'll need to use our outgoing mail server. If you need help, here are the support pages for popular email providers. If your favourite email provider isn’t automatically loaded when you receive your new device, you can download it from Google Play or the App Store. Most phones and tablets are set up with popular email providers ready to use.