Early next year, the sign-in page for all Google Apps customers will be updated to be consistent across all Google Apps services. In other words, the sign-in page for Gmail will now be identical to the sign-in page for Google Calendar, Google Drive, or any other Google Apps service. This change will improve security and make it easier for users to switch between accounts. This means a few things for your organization:
The Google Apps sign-in page can no longer be personalized with colors and custom logos. It will now look the same across all Google sign-in pages.
Users will have to log in with their full email address (example: email@example.com).
For SSO domains with a network mask, users will be presented with the new Google sign-in page when they log in from outside the SSO network mask. This change does not affect SSO domains without a network mask.
We will be providing more details in the next few months so you can properly communicate this change to your end users. Stay tuned.
Google Apps for Business, Education, and Government