Smartphones usually already have a pre-installed email client that can be easily connected to your IONOS business email address. Alternatively, you can use your preferred browser-based email client. In both cases the app needs to support IMAP accounts in order to work with your IONOS email address. Our Help Center provides a step-by-step guide for setting up your email address on an android or iOS smartphone. If this doesn't work, you can also set up your business email account with our Microsoft Outlook 2019 client when purchasing our Microsoft Hosted Exchange product. You can also access your mail, contacts and appointments via the web app OWA (Outlook on the Web) or the Outlook apps for mobile devices. Just install the Outlook app on your smartphone and get started in just a few clicks. If you find that you have any more questions or issues, our customer service team is standing by 24/7.