Looking for logging into the Exchange Online Administrator site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Exchange Online Administrator site. After that you can login as usual with your login credentials.
https://docs.microsoft.com/de-de/exchange/exchange-admin-center
https://products.office.com/de-de/business/office-365-administration
https://products.office.com/en-my/business/office-365-administration
https://btbusiness.custhelp.com/app/answers/detail/a_id/40392/~/how-do-i-log-in-to-the-office-365-admin-centre%3F
https://www.computerwoche.de/v/office-365-exchange-online-admin-center-im-ueberblick,1039427
https://crmbook.powerobjects.com/system-administration/office-365/logging-into-the-admin-center/
https://www.atwork-it.com/news/2015/how-to-setup-an-exchange-admin-in-office-365-and-use-this-account-in-delegate365/
https://help.bittitan.com/hc/de/articles/115008258668-How-do-I-create-an-administrator-account-in-Office-365-and-then-use-this-during-migration-
https://searchwindowsserver.techtarget.com/tip/An-Exchange-Online-administration-primer-for-Office-365-newbies
https://campus.barracuda.com/product/cloudtocloudbackup/doc/78153975/exchange-online-deployment/
https://practical365.com/blog/microsoft-365-admin-center/
https://o365info.com/how-to-add-exchange-admin-center-eac-to/
https://www.lucid8.com/documentation/DSWebHelp/SETUP/Creating_an_Office_365_Global_Admin_Account.htm