Resetting the application's preferences. If the problem is caused by an issue with the internet connection, try refreshing the page in a different browser or device. If the problem still persists, try disabling the app in question and try again. Sometimes, this can help to fix the issue. If none of these solutions work, you can use another device for emailing instead. The first step is setting up Gmail on your iPhone. To ensure that the settings of your email provider are correct, follow the instructions here.