Hotmail remains one of the world's widely used email services, although Microsoft has integrated Hotmail into its Outlook.com/Microsoft account infrastructure. Existing addresses ending in @hotmail.com continue to work normally, but the technology used to authenticate these accounts has changed significantly.

This becomes particularly important when configuring a Hotmail account in Microsoft Outlook for Windows.

A common problem occurs when a user manually configures a Hotmail account as Exchange ActiveSync (EAS) and receives an error such as:

Log onto Exchange ActiveSync mail server (EAS): The username or password you entered isn't working. Please try typing them again.

It is easy to assume that the Hotmail password is incorrect. However, in many cases the password itself is perfectly valid. The real problem is the authentication method or Outlook version being used.

Microsoft ended Basic Authentication access for Outlook.com accounts in September 2024 and now requires supported modern authentication methods.

This article explains how to correctly configure a Hotmail account in Outlook, why Exchange ActiveSync configurations may fail, how Modern Authentication/OAuth2 affects older Outlook versions, and how to troubleshoot password and synchronization problems.

1. Hotmail, Outlook.com and Microsoft Accounts – Understanding the Relationship

Microsoft has operated several consumer email domains over the years, including:

• @hotmail.com
• @hotmail.co.uk
• @live.com
• @msn.com
• @outlook.com

Although the email addresses are different, Microsoft now handles these accounts through the Outlook.com infrastructure.

Therefore, if your email address is:

example@hotmail.com

you should normally configure it in Microsoft Outlook as an Outlook.com/Microsoft account, rather than treating Hotmail as an independent legacy email provider.

Microsoft's current Outlook documentation specifically includes Hotmail addresses in its Outlook.com account configuration procedure.

2. Recommended Method: Automatic Hotmail Configuration

For supported versions of Outlook, automatic account configuration should be your first choice.

Open:

Microsoft Outlook → File → Add Account

Enter your complete Hotmail email address:

example@hotmail.com

Click:

Connect

Outlook should identify the address as a Microsoft account and display Microsoft's authentication/sign-in interface.

Enter your Microsoft account password and complete any additional authentication requested.

Once authentication succeeds, Outlook creates the required account configuration automatically.

Microsoft recommends this automatic setup procedure for Outlook.com and Hotmail accounts.

3. Why Automatic Configuration Is Better

Automatic configuration eliminates many problems caused by manually entering:

• server addresses;
• Exchange ActiveSync settings;
• POP settings;
• IMAP settings;
• SMTP settings;
• authentication types;
• encryption options;
• port numbers.

More importantly, automatic Outlook.com configuration can establish the account using Microsoft's supported Modern Authentication process.

The user normally sees a Microsoft sign-in window instead of Outlook simply transmitting a username and password to a legacy mail server.

4. What Is Modern Authentication?

Modern Authentication generally refers to Microsoft's implementation of authentication technologies based on OAuth.

Instead of an application repeatedly sending your actual username and password directly to the mail service, OAuth allows the application to obtain an authorization token after successful authentication.

This architecture provides better support for modern security mechanisms such as:

• multi-factor authentication;
• conditional authentication processes;
• account security controls;
• token-based authorization;
• passwordless authentication scenarios;
• improved account protection.

Microsoft now requires Modern Authentication/OAuth2 for Outlook.com POP, IMAP and SMTP access.

5. Why the Exchange ActiveSync EAS Error Appears

Suppose you manually configure the following:

Name: Apex Solutions
Email: apex_solutions@hotmail.com
Server: outlook.office365.com
Username: apex_solutions@hotmail.com
Password: ********

Outlook may test the connection and display:

Log onto Exchange ActiveSync mail server (EAS): The username or password you entered isn't working.

This message can be misleading.

It does not automatically prove that the password is incorrect.

The account may be failing because Outlook is attempting to authenticate using a connection/authentication mechanism that is no longer supported for that configuration.

Therefore, repeatedly changing the password may accomplish nothing.

6. Microsoft Has Retired Basic Authentication for Outlook.com

This is one of the most important changes administrators and Outlook users need to understand.

Microsoft's published transition timeline states that Basic Authentication became unavailable for Outlook.com accounts beginning September 16, 2024.

Basic Authentication essentially allowed an application to authenticate using a username and password through the older authentication mechanism.

Modern Authentication uses OAuth-based authentication instead.

Consequently, a mail client can have:

• the correct email address;
• the correct password;
• the correct mail server;
• an active internet connection;

and still fail because the authentication protocol is unsupported.

7. Avoid Manually Configuring Hotmail as Exchange ActiveSync

If Outlook gives you an old-style configuration window asking specifically for an:

Exchange ActiveSync mail server

do not automatically assume that this is the best configuration method for a Hotmail account.

For Outlook for Windows, Microsoft's recommended solution is to add the Outlook.com/Hotmail account using Outlook's automatic account configuration so it can establish a supported Outlook.com synchronization connection.

Therefore, instead of repeatedly testing:

outlook.office365.com + username + password

through an old EAS configuration screen, cancel the configuration and try automatic account setup.

8. Create a New Outlook Profile for Troubleshooting

Sometimes an existing Outlook profile contains old account information, cached credentials or legacy configuration.

Creating a temporary Outlook profile is an excellent troubleshooting technique.

Close Outlook.

Open:

Control Panel → Mail (Microsoft Outlook)

Select:

Show Profiles

Click:

Add

Enter a profile name such as:

Hotmail Test

Then configure the Hotmail account using automatic account detection.

This approach has another advantage: your existing Outlook profile remains untouched while you test the new configuration.

Microsoft also recommends creating a new Outlook Desktop profile when moving an Outlook.com account from an older POP/IMAP-style configuration to supported Outlook.com/Exchange synchronization.

9. Outlook Version Is Extremely Important

Not every old Microsoft Outlook installation supports the authentication methods now required by Outlook.com.

Microsoft specifically identifies the following Outlook Desktop versions as not supporting Modern Authentication for direct Outlook.com connectivity:

• Outlook 2007
• Outlook 2010
• Outlook 2013
• Outlook 2016 MSI
• Outlook 2019 LTSC

Microsoft additionally states that Outlook Desktop releases with versions below 11601.10000 do not support Modern Authentication for Outlook.com.

This distinction is extremely important when troubleshooting Outlook 2016.

10. Outlook 2016 MSI vs Click-to-Run

Simply knowing that a computer has "Outlook 2016" installed may not be enough.

Different installation technologies and builds exist.

For example:

Outlook 2016 MSI

may behave differently from a supported, updated Click-to-Run installation regarding modern Outlook.com connectivity.

Therefore, before spending hours changing server names, passwords and registry settings, determine the exact Outlook version and build.

Open:

Outlook → File → Office Account → About Outlook

Record:

• Outlook edition;
• version;
• build number;
• 32-bit or 64-bit;
• installation/update information.

This information can determine whether the Outlook installation itself is the root cause.

11. Correct Manual IMAP Settings for Outlook.com/Hotmail

Manual configuration should generally be a secondary option, not the first choice for Microsoft Outlook.

According to Microsoft's current published settings, Outlook.com uses the following IMAP configuration.

Setting	Value
Protocol	IMAP
IMAP Server	outlook.office365.com
IMAP Port	993
IMAP Encryption	SSL/TLS
Authentication	OAuth2 / Modern Authentication
Username	Complete email address

Example username:

example@hotmail.com

12. Correct SMTP Settings

For outgoing mail:

Setting	Value
SMTP Server	smtp-mail.outlook.com
SMTP Port	587
Encryption	STARTTLS
Authentication	OAuth2 / Modern Authentication
Username	Complete Hotmail email address

These are Microsoft's currently published Outlook.com SMTP settings.

Do not assume that entering these server names is enough.

The email client must also support the required OAuth2/Modern Authentication process.

13. POP3 Settings

If POP is genuinely required, Microsoft's current settings are:

Setting	Value
POP Server	outlook.office365.com
POP Port	995
Encryption	SSL/TLS
Authentication	OAuth2 / Modern Authentication

 

However, POP should not normally be selected merely because automatic Outlook.com configuration fails.

Fixing the reason automatic configuration fails is generally preferable.

14. POP/IMAP May Need to Be Enabled

Microsoft currently states that POP and IMAP access are disabled by default for Outlook.com.

If manual IMAP or POP access is required, sign into Outlook.com and navigate to:

Settings → Mail → Forwarding and IMAP

Then enable the required option:

Let devices and apps use IMAP

or:

Let devices and apps use POP

Save the settings.

15. IMAP Is Not the Same as Outlook.com/Exchange Synchronization

This distinction is frequently overlooked.

IMAP is primarily an email synchronization protocol.

A properly configured Microsoft/Outlook.com account provides a more integrated experience.

Depending on the Outlook version and account configuration, Outlook.com synchronization can provide better integration of Microsoft mailbox functionality than treating the account as a generic IMAP mailbox.

Therefore, for Microsoft Outlook itself, automatic Outlook.com account configuration should normally be preferred.

16. What If the Hotmail Password Works in a Browser?

This is an extremely useful diagnostic test.

Open Outlook.com in a browser and sign in with:

your Hotmail email address + password

If browser login succeeds but the Outlook account test fails, that strongly suggests that the problem may involve:

• Outlook version;
• authentication method;
• legacy EAS configuration;
• existing Outlook profile;
• cached credentials;
• unsupported Outlook build;
• two-step verification;
• account configuration method;

rather than simply an incorrect password.

17. Two-Step Verification and App Passwords

Microsoft's Outlook.com setup documentation notes that two-factor authentication can affect account configuration. If Outlook repeatedly refuses a password that is known to be correct, Microsoft advises checking whether two-step verification is enabled and, where applicable, using an app password.

However, an app password should not be treated as a universal workaround for obsolete authentication.

If your Outlook version fundamentally cannot support the authentication method required for the intended Outlook.com connection, the better solution may be to use a supported Outlook version.

18. Recommended Troubleshooting Sequence

When a Hotmail account refuses to configure in Outlook, use this sequence.

Step 1 – Verify web login

Confirm that the Hotmail account works through Outlook.com.

Step 2 – Verify the complete username

Always use the complete address:

example@hotmail.com

Do not use only:

example

Step 3 – Determine Outlook version

Check:

File → Office Account → About Outlook

Record the exact edition and build.

Step 4 – Avoid legacy EAS manual configuration

If Outlook is testing:

Exchange ActiveSync mail server (EAS)

cancel the setup and try automatic Outlook.com account detection instead.

Step 5 – Create a clean Outlook profile

Use:

Control Panel → Mail → Show Profiles → Add

Then test the account again.

Step 6 – Use automatic configuration

Enter only the Hotmail email address initially and allow Outlook to detect the account.

Step 7 – Complete Microsoft's authentication window

If the Microsoft login page appears, authenticate there and complete MFA if requested.

Step 8 – Check two-step verification

If the correct password is repeatedly rejected, inspect Microsoft account security settings.

Step 9 – Check Outlook compatibility

An unsupported legacy Outlook release may simply be incapable of establishing the required modern connection.

Step 10 – Consider upgrading Outlook

If the Outlook version cannot support Microsoft's required authentication, upgrading the client is preferable to repeatedly attempting unsupported server configurations.

19. Common Mistakes to Avoid

Mistake 1: Assuming every password error means the password is wrong

Authentication incompatibility can produce password-related errors even when the password itself is correct.

Mistake 2: Configuring Hotmail as old Exchange ActiveSync

Legacy EAS setup is not the recommended approach for modern Outlook.com configuration in Outlook for Windows.

Mistake 3: Repeatedly changing server names

Changing:

outlook.office365.com

to random historical Hotmail server names will not solve an authentication compatibility problem.

Mistake 4: Immediately switching to POP

POP may reduce functionality and does not automatically solve Modern Authentication requirements.

Mistake 5: Ignoring Outlook version

An old Outlook installation can be the entire cause of the problem.

Mistake 6: Assuming Outlook 2016 is always compatible

The exact Outlook 2016 edition, installation type and build matter.

Mistake 7: Disabling MFA just to make Outlook work

Do not weaken account security simply to accommodate obsolete software. Use a supported authentication method/client instead.

20. Modern Authentication vs Basic Authentication

Feature	Basic Authentication	Modern Authentication
Authentication model	Username/password based	OAuth/token based
MFA support	Poor/incompatible	Supported
Modern Microsoft security	Limited	Designed for it
Outlook.com current use	Retired	Required/supported
Recommended	No	Yes

Microsoft retired Basic Authentication for Outlook.com because modern authentication provides stronger protection against credential-related attacks.

21. What About New Outlook for Windows?

Microsoft's New Outlook for Windows supports Microsoft accounts including:

• Outlook.com
• Hotmail.com

Accounts can be added through the account settings interface, and Microsoft handles the appropriate authentication workflow.

Therefore, if a legacy Outlook installation cannot support the required modern authentication, New Outlook may be one alternative, provided its features meet the user's requirements.

22. Additional ActiveSync Change Relevant in 2026

There is another change administrators should know about.

Microsoft's current Outlook.com support documentation states that, starting March 1, 2026, devices running ActiveSync versions lower than 16.1 can no longer connect to Microsoft's services.

This reinforces the importance of replacing obsolete mail clients and legacy synchronization configurations instead of attempting to keep them working indefinitely.

23. Recommended Configuration Summary

For most users running a supported version of Microsoft Outlook:

Preferred method:

Outlook → File → Add Account → enter complete Hotmail address → Connect → Microsoft sign-in → authenticate

Avoid manually configuring Exchange ActiveSync unless there is a specific supported reason to do so.

For applications that genuinely require manual IMAP/SMTP configuration, Microsoft's current settings are:

Incoming IMAP

Server: outlook.office365.com
Port: 993
Encryption: SSL/TLS
Authentication: OAuth2/Modern Authentication

Outgoing SMTP

Server: smtp-mail.outlook.com
Port: 587
Encryption: STARTTLS
Authentication: OAuth2/Modern Authentication

 

24. FAQ – Frequently Asked Questions

Q1. Can I still use a Hotmail account in Microsoft Outlook?

Yes. Hotmail addresses remain supported as Microsoft accounts and can be added to supported versions of Outlook.

Q2. Why does Outlook say my Hotmail password is incorrect when it is correct?

The error can result from an unsupported authentication method, legacy EAS configuration, an incompatible Outlook version, two-step verification, cached credentials or profile problems. A password error does not always mean the password itself is wrong.

Q3. What does EAS mean?

EAS stands for Exchange ActiveSync. It is a synchronization protocol historically used by email clients and mobile devices.

Q4. Should I manually configure Hotmail as Exchange ActiveSync?

For Outlook for Windows, normally no. Microsoft's recommended method is automatic Outlook.com account configuration using a supported Outlook version.

Q5. What is the Hotmail IMAP server?

The current Microsoft-published server is:

outlook.office365.com

Port:

993

Encryption:

SSL/TLS

Authentication:

OAuth2/Modern Authentication.

Q6. What is the Hotmail SMTP server?

Microsoft currently specifies:

smtp-mail.outlook.com

Port:

587

Encryption:

STARTTLS

Authentication:

OAuth2/Modern Authentication.

Q7. What is the Hotmail POP server?

Microsoft currently specifies:

outlook.office365.com

Port:

995

Encryption:

SSL/TLS

Authentication:

OAuth2/Modern Authentication.

Q8. Is outlook.office365.com a valid Hotmail server?

Yes. Microsoft currently lists outlook.office365.com for Outlook.com IMAP and POP access. However, having the correct server address alone does not guarantee that an old email application can authenticate successfully.

Q9. Why does the Exchange ActiveSync account test fail?

One possible reason is that the Outlook client/configuration is attempting to use an authentication mechanism no longer accepted by Microsoft.

Q10. Does Microsoft still allow Basic Authentication for Hotmail?

No. Microsoft states that Basic Authentication became unavailable for Outlook.com accounts beginning September 16, 2024.

Q11. What authentication should Hotmail use now?

Modern Authentication/OAuth2 should be used by supported applications. Microsoft's current POP, IMAP and SMTP documentation specifies OAuth2/Modern Authentication.

Q12. Does Outlook 2016 work with Hotmail?

It depends on the Outlook 2016 installation/build and connection method. Microsoft specifically lists Outlook 2016 MSI among Outlook Desktop versions that do not support Modern Authentication for direct Outlook.com connectivity.

Q13. How can I check my exact Outlook version?

Open:

Outlook → File → Office Account → About Outlook

Check the version, build and architecture.

Q14. Should I use IMAP if automatic Hotmail setup fails?

Not necessarily. First determine why automatic setup fails. Switching to IMAP can hide the actual issue and may not provide the same integrated Outlook.com experience.

Q15. Do I need to enable IMAP in Hotmail?

If you specifically intend to use IMAP, Microsoft currently says IMAP access must be enabled under:

Outlook.com → Settings → Mail → Forwarding and IMAP.

Q16. Can two-factor authentication cause Outlook password errors?

It can affect authentication. Microsoft's documentation advises checking two-step verification when Outlook repeatedly refuses a password known to be correct.

Q17. Should I disable two-factor authentication to make Outlook work?

No. It is better to use an Outlook version and configuration that supports modern authentication.

Q18. What if Hotmail works in my browser but not Outlook?

That indicates the account itself is probably accessible and attention should shift toward Outlook's version, authentication method, profile and account configuration.

Q19. Should I create a new Outlook profile?

Yes, particularly when troubleshooting an existing legacy configuration. A test profile lets you attempt a clean automatic configuration without immediately disturbing the existing Outlook profile.

Q20. What is the best long-term solution for an old Outlook installation?

Use a currently supported Outlook client capable of authenticating to Outlook.com through Microsoft's supported modern authentication process.

Conclusion

Configuring a Hotmail account in Microsoft Outlook is no longer simply a matter of entering an email address, password and mail server.

Microsoft's transition away from Basic Authentication means that the authentication capability of the Outlook client is now just as important as the username, password and server settings.

When Outlook displays:

“Log onto Exchange ActiveSync mail server (EAS): The username or password you entered isn't working”

do not immediately assume that the Hotmail password is incorrect.

First verify the account through Outlook.com, determine the exact Outlook version and build, avoid obsolete manual Exchange ActiveSync configurations, create a clean Outlook profile if necessary, and use automatic Outlook.com configuration with Modern Authentication whenever possible.

For supported Outlook installations, the preferred approach is straightforward:

File → Add Account → Enter Hotmail address → Connect → Microsoft authentication → Finish

This provides a more secure and reliable configuration than attempting to force a modern Hotmail account through an obsolete authentication method.

Official Microsoft references:
Add your Outlook.com account in Outlook for Windows
Outlook.com POP, IMAP and SMTP settings
Microsoft guidance on Modern Authentication for Outlook.com

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