You open Outlook.com (the home of Hotmail since the two services merged) and your inbox is stuck. Maybe new messages stopped arriving, your sent mail bounces back, or the page just spins without loading. The sign-in box might even reject a password you know is correct.
Almost every Hotmail problem traces back to one of a handful of causes: a server-side outage, a browser or cache snag, mail that is hidden rather than missing, a full mailbox, or an account-security block. The fixes below are ordered quickest and most common first, with the exact menu paths.
You sign in at outlook.live.com (or outlook.com), and your Hotmail password is the same as your Microsoft account password. Work through these in order and your inbox should come back.
Check Whether Microsoft Is Down First
Before changing anything, rule out a server-side outage. If the Outlook.com service status is not green, the fault is on Microsoft's side and the only fix is to wait until service returns to normal.
Microsoft also publishes a live "Fixes or workarounds for recent issues on Outlook.com" page that lists current known issues marked FIXED, WORKAROUND, or INVESTIGATING. Several alarming errors (an HTTP 404 on send, storage falsely showing 0 GB, in-app support links failing) were recent server bugs already marked FIXED, so check that page for your exact symptom or error code before deeper troubleshooting.
To report a problem from inside Outlook.com, select Help (?) > "Still need help?" > Yes.
Refresh the Browser and Clear the Cache
If the page will not load, the inbox looks empty, or the left folder pane vanished, the browser is usually the culprit. Corrupted cache and cookies cause both sign-in and load failures.
- 1.Fully close and reopen the browser, then try an Incognito or Private window (it disables extensions and ignores existing cookies and cache).
- 2.If email will not load with an ad-blocker such as AdBlock or uBlock enabled, allowlist Outlook.com in the blocker, switch to Microsoft Edge, or remove the problematic extension.
- 3.In Firefox, an empty or non-loading inbox is often caused by an add-on; disable or remove the offending add-ons.
- 4.In Safari, open Preferences > Privacy and disable cross-site tracking and cookie blocking; if you cannot add addresses in the To field, update Safari to version 16 or newer.
If the folder pane is still missing, sign out, clear the browser cache, close all windows, then sign in again and maximize the window.
Unhide Missing Incoming Mail
When mail seems to vanish, it is frequently filtered or sorted out of view rather than truly gone. Check each of these surfaces.
- 1.Open the "Other" tab and confirm no filters are hiding messages. To stop the split entirely, turn off Focused Inbox: Settings gear > View all Outlook settings > Mail > Layout, then under Focused Inbox select "Don't sort my messages" and Save. This is per-mailbox, so repeat it for each account.
- 2.Open the Junk Email folder; for anything wrongly filtered, right-click the message and choose "Mark as not junk".
- 3.If a sort is hiding new mail, restore order with Filter > Sort > Date.
- 4.Check that no email rules are diverting the messages you want.
- 5.Check whether email forwarding is enabled, since forwarded mail can leave the inbox.
- 6.Open the Blocked Senders list and remove any address added by mistake (a wrongly blocked Gmail.com address is a known cause of missing Gmail mail), then save.
If you connect a third-party app over IMAP or POP and have receive trouble, disable IMAP and POP and try again, and make sure connected apps support modern authentication.
Free Up Your Mailbox Storage
A full mailbox silently blocks both sending and receiving. Free accounts include 15 GB of email storage, separate from the 5 GB of shared Microsoft cloud (OneDrive) storage.
- 1.Go to Settings > Storage to see a breakdown by folder and delete items older than 3, 6, or 12 months.
- 2.Empty the Deleted Items folder; it counts toward your quota until you empty it manually or 30 days pass (Junk auto-deletes after 10 days).
- 3.To remove selected messages permanently and immediately, select them and press Shift + DEL.
Note that both quotas can stop email. If you see "Microsoft Unified Storage is full," your cloud quota is the problem, so clear OneDrive files and attachments too. Microsoft 365 Personal, Family, and Basic subscribers get 100 GB of mailbox storage per person (not on trial subscriptions).
Fix Mail That Will Not Send
If receiving works but messages will not leave, run through the common send blockers.
- Confirm the recipient address is spelled correctly; a bad address triggers a non-delivery report.
- Remove any attachment larger than 25 MB, since Outlook cannot send the message. As a workaround, send the file as a OneDrive link using Upload and Share or Copy Link instead of attaching it.
- On a new account, a "Low sending quota" restriction is temporary and lifts automatically as the account establishes credibility, so simply wait.
- If sending errors appear, remove your email signature and resend.
- Make sure recipients are in your Contacts, and ask anyone blocking you to add you to their safe senders list.
- If you see "The recipient server did not accept our requests to connect," verify and update your own email address.
Remember that a full mailbox also blocks sending, so clear storage if the steps above do not help.
Reset Your Password or Unblock the Account
A wrong, forgotten, or recently changed password stops send and receive. If the password changed recently, update it everywhere you use it.
To reset it, select "Forgotten your password?" on the sign-in page, enter your Hotmail address, choose a verification method, confirm part of your recovery email or the last four digits of your recovery phone, then enter the code and set a new password. If you cannot reach any verification option, use the Sign-in Helper at aka.ms/sign-in-helper, and if that fails, the Microsoft account recovery form (it asks questions only you can answer and responds within 24 hours).
Microsoft may also temporarily block an account after unusual sign-in activity, such as logging in from a new place or device. Open the Sign-in Helper, enter the blocked address and the characters shown, supply a verification code from your authenticator app or a text message, then change your password to finish unblocking. Note that support agents cannot send reset links or change account details for you.
Update the Mobile App or Reset Device Sync
On phones, repeated password prompts in the Outlook mobile app usually mean the app's security standards were updated; download and install the latest app version to resolve it. For a personal Hotmail account that will not sign in, use the in-app sign-in helper, which identifies the problem and guides the fix.
If a single device stops sending or receiving, a stale partnership between that device and your mailbox is often the cause; remove the partnership and re-add the account to restore sync. For repeated sign-in loops on the built-in iOS Mail app, Microsoft recommends using the Outlook for iOS app instead. If a non-Microsoft account (Gmail, Yahoo, iCloud) added to Outlook fails, contact that provider, since Microsoft is not the mail host.
Set Up an App Password and Correct Server Settings
If you turned on two-step verification, older apps and devices (an older mail client, an Xbox 360, or a mail-sending security camera) throw an "incorrect password" error even with the right password. You need an app password.
- 1.Go to your Microsoft account at account.microsoft.com/security > "Manage how I sign in," open the Advanced (Additional) security options.
- 2.Scroll to "App passwords" and select Create a new app password.
- 3.Enter the generated password into the app or device wherever you would normally type your Microsoft account password. If you forget one, just generate a new one.
When adding a Hotmail.com or Live.com address to the classic Outlook desktop app, the account type must be Outlook.com, not Exchange or Microsoft 365. Use File > Account Information > Add Account > enter your email > Advanced options > tick "Let me set up my account manually" > "POP or IMAP." POP and IMAP are off by default, so enable them first under Settings > Mail > "Forwarding and IMAP" and toggle "Let devices and apps use IMAP" (or POP) on. The verified server settings are: IMAP outlook.office365.com port 993 SSL/TLS; POP outlook.office365.com port 995 SSL/TLS; SMTP smtp-mail.outlook.com port 587 STARTTLS, with your full email address as the username and modern authentication (OAuth2) required.
Frequently Asked Questions
Is Hotmail the same as Outlook.com now? Yes. The services merged, you sign in at outlook.live.com or outlook.com, and your Hotmail password is identical to your Microsoft account password.
Why does my correct password get rejected by my mail app? If two-step verification is on, older apps and devices show an "incorrect password" error until you generate and use an app password instead of your normal password.
My mailbox is not full, so why can't I send or receive? Cloud storage and email storage are separate quotas, and either can stop email. If you see "Microsoft Unified Storage is full," clear OneDrive files even though the mailbox itself has room.
I see "You can't sign in here with a personal account" in the desktop Outlook app. Is my account broken? No. That is a classic Outlook for Windows bug, not an account problem, and it is fixed by updating Outlook to a current version.
Can a Microsoft support agent reset my password for me? No. Agents cannot send reset links or change account details. Use the self-service password reset, the Sign-in Helper, or the account recovery form.
I have not signed in for years. Can I still recover the account? Accounts inactive for more than two years may have been deleted and cannot be reopened, in which case recovery will not help.
