Dear Adinda Ayu Lestari,
Welcome to Microsoft community.
I am sorry to hear that you are experiencing outlook login issues, the "Too Many Requests" error you’re encountering on Outlook typically indicates that there have been too many login attempts made in a short period of time, which can temporarily lock you out to protect your account. I suggest you try the following to combat the problem:
1, Since this is a temporary restriction, wait for a short period of time (usually 15-30 minutes) before trying to log in again. Avoid making multiple login attempts during this timeframe.
2, Open a web browser in incognito or private browsing mode. This mode doesn’t use your cached data and may help you bypass the issue. In the meantime, you should stop using the mobile version of outlook for the time being, because the phone's cache will keep trying to log in to the link causing the account to be locked out. It is best to uninstall the phone app first and then reinstall and download the app when the account is back to normal!
Worst case scenario,if your account is locked and you don't have any available way to unlock it, it is recommended that you fill out the recovery form to respond to the account. To access the account recovery form, click here: Recover Your Account (Recover your account (live.com)), I suggest that you take your time to provide the necessary information, as this is critical to recovering the account. The secret to pass the validation process is to fill in as much information as possible on the form, the more detailed information you provided, the higher likelihood of getting your account back! You can do this on a computer that you used to log on to regularly, and you can fill in your purchase history and credit card information, including associated game accounts, etc., all of which can greatly increase your probability of passing the verification process. You can submit the recovery form an unlimited number of times, up to a maximum of two times per day, whichever is the most recent.
Usually after you performed an account recovery operation, it may take some time to see the results.
Important: The account recovery form can only be used if two-step verification is not enabled.
If you still cannot access your account through fill recovery form, I suggest you contact our online agent to check the account status for you. Since the community forum is a public community, in order to protect user privacy information, we cannot access any user privacy information and relevant data, so, I can't query your account directly for you, but I can point you in the right direction.
Specific steps required to contact an online agent:
1. After entering Contact - Microsoft Support, enter "Account Issues" in the search box
2. Click Sign in and contact support at the bottom of the page.
3. Sign in with your Microsoft account.
4. Under Products & Services, select Microsoft 365 and Office Options.
5. Under Categories, select Manage Account Security.
6. Click "Chat with a support agent." Then fill in the contact information where the online agent can contact you.
Please contact chat during local working hours. I hope you can solve the problem smoothly. If you have any new questions, please do let me know!
In addition, if you successfully recover your account, you can consider the suggestions in the following documents to improve the security of your account How to help keep your Microsoft account safe and secure - Microsoft Support
Best regards,
Harris-MSFT |Microsoft Community support specialist