We only support the following e-mail clients and apps:

• RWTH Mail App (Outlook Web App)*
• Microsoft Outlook
• Microsoft Outlook (Exchange) for Windows**
• Microsoft Outlook 2016 for MacOS
• Mozilla Thunderbird
• Windows 10/11 Mail App
• RWTH Mail Android
• AppleMail
• RWTH Mail iOS

*The RWTH Mail App is no longer supported on some older browser versions:

• Internet Explorer (all versions)
• Safari 8 or older

**The Outlook and Outlook 365 applications no longer works with the following operating systems:

• Windows 7
• Windows 8.1
• Windows Server 2012
• Windows Server 2012R2