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[Update] Issue: Exchange, OWA (Outlook Web App) Light, Calendar

Monday, 18 May 2026 15:00:00

E-mail

Resolved after 188h 34m Tuesday, 26 May 2026 11:34:00

For security reasons, Microsoft has disabled the Light version of OWA (Outlook Web App). Unfortunately, users can no longer switch mailboxes that were previously in Light mode to the normal view, meaning they cannot be used as usual. If this affects you, please contact the Service Desk via e-mail; the Light mode will then be disabled for you by an administrator.

As a result, you will also be unable to access published calendars (e.g. links ending in .html or .ics). When you try to access them, you will receive an error message with the following content:

“This page is currently unavailable. msx.tu-dresden.de is unable to process this request at this time. HTTP ERROR 500”

Thank you for your understanding.