If you have a Hostinger Email account with your own domain—for example, info@yourdomain.com—you can configure it in Microsoft Outlook and send, receive, organize, and synchronize your business email directly from Windows.

The recommended method for most users is IMAP, because it keeps your mailbox synchronized between Outlook, Hostinger Webmail, mobile phones, tablets, and other computers.

This detailed guide covers:

• Hostinger IMAP settings
• Hostinger SMTP settings
• Hostinger POP3 settings
• Microsoft Outlook configuration
• New Outlook for Windows
• Classic Outlook
• Outlook 2016, 2019, 2021, 2024 and Microsoft 365
• SMTP authentication
• SSL/TLS settings
• Outlook password problems
• Send/receive errors
• DNS and MX troubleshooting
• PowerShell connectivity testing
• Common Hostinger Outlook errors

Hostinger Email Settings for Outlook – Quick Answer

For a standard Hostinger Email mailbox, use these settings:

Setting	Server	Port	Encryption
IMAP Incoming	imap.hostinger.com	993	SSL/TLS
POP3 Incoming	pop.hostinger.com	995	SSL/TLS
SMTP Outgoing	smtp.hostinger.com	465	SSL/TLS
Alternative SMTP	smtp.hostinger.com	587	STARTTLS/TLS

Username: Your complete email address
Example: support@yourdomain.com

Password: Password assigned to that Hostinger email mailbox

SMTP authentication: Required/Enabled

Important: Always check Hostinger hPanel → Emails → Manage/Mailboxes → Connect Apps & Devices before making major configuration changes. The exact settings displayed by Hostinger for your mailbox should take priority.

What Are IMAP, POP3 and SMTP?

Understanding these three protocols makes email troubleshooting much easier.

IMAP – Incoming Email and Synchronization

IMAP stands for Internet Message Access Protocol.

It allows Outlook to synchronize messages and folders with the mail server.

For example, when you:

• read an email,
• delete a message,
• move a message,
• create a folder,

those changes can synchronize with Hostinger Webmail and your other IMAP-connected devices.

Hostinger IMAP Settings

Server: imap.hostinger.com
Port: 993
Encryption: SSL/TLS

IMAP is the recommended option for most business users.

What Is SMTP?

SMTP stands for Simple Mail Transfer Protocol.

SMTP handles outgoing email.

In simple terms:

Receiving email → IMAP or POP3

Sending email → SMTP

Hostinger SMTP Settings

SMTP server: smtp.hostinger.com

Port: 465

Encryption: SSL/TLS

Authentication: Enabled

Username: Complete email address

Password: Email mailbox password

If port 465 causes an encryption or connectivity problem, Hostinger also documents an alternative:

SMTP server: smtp.hostinger.com

Port: 587

Encryption: STARTTLS/TLS

What Is POP3?

POP3 is an older protocol designed mainly for downloading email from the server to a computer.

Hostinger POP3 Settings

Server: pop.hostinger.com

Port: 995

Encryption: SSL/TLS

POP3 can still be useful in certain situations, but IMAP is generally better for modern business email.

IMAP vs POP3 – Which Should You Choose?

Feature	IMAP	POP3
Messages remain synchronized	Yes	Limited
Multiple devices	Excellent	Not recommended
Webmail synchronization	Yes	Limited
Folder synchronization	Yes	Limited
Sent Items synchronization	Yes	Usually limited
Suitable for mobile + PC	Yes	Not ideal
Local PST dependency	Lower	Higher
Recommended for most users	Yes	Only when specifically required

Recommended Choice

For most users:

Choose IMAP.

Use POP3 only if you specifically need emails downloaded to one computer and understand the implications for local Outlook data and backup.

Before Adding Hostinger Email to Outlook

Before changing Outlook settings, confirm the following:

1. Your Hostinger email service is active.
2. The mailbox has already been created.
3. You know the complete email address.
4. You know the mailbox password.
5. Your domain is active.
6. Your domain's email DNS/MX configuration is correct.
7. Your computer has Internet access.
8. Outlook is installed and functioning.

Test Hostinger Webmail First

This is one of the most important troubleshooting steps.

Before configuring Outlook, sign in to Hostinger Webmail with the same email address and password.

Test:

1. Can you log in?
2. Can you see your Inbox?
3. Can you receive email?
4. Can you send email?
5. Can you send an email to Gmail or Outlook.com?

If Webmail Doesn't Work

The problem may be with:

• mailbox credentials,
• mailbox suspension,
• mailbox quota,
• domain configuration,
• MX records,
• email subscription,
• or the Hostinger email service.

Fix the server/account problem before repeatedly changing Outlook settings.

If Webmail Works but Outlook Doesn't

This strongly suggests investigating:

• Outlook account settings,
• saved credentials,
• IMAP settings,
• SMTP settings,
• SSL/TLS configuration,
• Outlook profile,
• firewall,
• antivirus,
• Windows networking,
• or DNS resolution.

How to Configure Hostinger Email in Classic Microsoft Outlook

These instructions generally apply to Classic Outlook versions including Outlook 2016, Outlook 2019, Outlook 2021, Outlook 2024 and Microsoft 365 desktop Outlook.

Step 1 – Open Outlook

Launch Microsoft Outlook.

Step 2 – Add the Email Account

Go to:

File → Add Account

Enter your complete Hostinger email address.

Example:

accounts@yourdomain.com

Step 3 – Open Advanced Setup

Select:

Advanced options

Enable:

Let me set up my account manually

Click:

Connect

Step 4 – Select IMAP

Choose:

IMAP

For most users, this is the recommended configuration.

Enter Hostinger Incoming IMAP Settings

Use:

Incoming mail server:
imap.hostinger.com

Port:
993

Encryption:
SSL/TLS

Username:
Your complete email address

Example:

accounts@yourdomain.com

Password:
Your Hostinger mailbox password

Enter Hostinger Outgoing SMTP Settings

Use:

Outgoing mail server:
smtp.hostinger.com

Port:
465

Encryption:
SSL/TLS

Authentication:
Enabled

Use the same complete email address and mailbox password for SMTP authentication.

SMTP Authentication Is Required

A common Outlook problem is:

Outlook receives email but cannot send email.

When incoming mail works but outgoing email fails, check SMTP authentication.

In Classic Outlook, depending on your version, locate the outgoing server settings and enable the equivalent of:

My outgoing server (SMTP) requires authentication

Then choose:

Use same settings as my incoming mail server

Without correct SMTP authentication, receiving email may work while outgoing messages fail.

How to Configure Hostinger Email in New Outlook for Windows

New Outlook has a different interface from traditional Classic Outlook.

Typically, open:

Settings → Accounts → Your accounts

Select:

Add Account

Enter your complete Hostinger email address.

Allow Outlook to attempt automatic configuration first.

If automatic setup fails, select the available manual/advanced configuration option and configure IMAP.

Incoming

Server:

imap.hostinger.com

Port:

993

Security:

SSL/TLS

Outgoing

Server:

smtp.hostinger.com

Port:

465

Security:

SSL/TLS

Username:

Your complete email address.

Password:

Your Hostinger mailbox password.

Alternative SMTP Port 587

If Outlook cannot establish an encrypted SMTP connection using:

smtp.hostinger.com:465

you can test Hostinger's alternative configuration:

Server: smtp.hostinger.com

Port: 587

Encryption: STARTTLS/TLS

Do not randomly switch ports unless necessary. Start with Hostinger's standard SMTP 465/SSL configuration.

Outlook Says “Something Went Wrong”

If Outlook displays:

Something went wrong

check these items before deleting the account:

1. Confirm your full email address.
2. Verify your password through Webmail.
3. Check imap.hostinger.com.
4. Check smtp.hostinger.com.
5. Verify IMAP port 993.
6. Verify SMTP port 465.
7. Check SSL/TLS.
8. Confirm SMTP authentication.
9. Restart Outlook.
10. Restart Windows if necessary.
11. Check the Windows date and time.
12. Test using another Internet connection.

If automatic detection fails, manual IMAP configuration can often solve the problem.

Outlook Keeps Asking for the Hostinger Password

Repeated password prompts may indicate:

• incorrect password,
• incorrect username,
• wrong mail server,
• wrong port,
• incorrect encryption,
• authentication failure,
• corrupt saved credentials,
• Outlook profile corruption,
• firewall interference,
• antivirus email scanning,
• or network problems.

First, verify that the same credentials successfully log in to Hostinger Webmail.

Remember:

Username = complete email address

Correct:

user@yourdomain.com

Usually incorrect:

user

Hostinger Email Receives but Cannot Send in Outlook

If incoming email works but outgoing email does not, concentrate on SMTP.

Verify:

SMTP server: smtp.hostinger.com

Port: 465

Encryption: SSL/TLS

Authentication: Enabled

Username: Complete email address

Password: Mailbox password

If required, test:

Port: 587

Encryption: STARTTLS/TLS

Also investigate:

• Windows Firewall
• antivirus email scanning
• router/firewall restrictions
• ISP restrictions
• corporate firewall policies
• incorrect credentials

Hostinger Email Sends but Cannot Receive

If Outlook sends successfully but does not receive email, check IMAP.

Server: imap.hostinger.com

Port: 993

Encryption: SSL/TLS

Also check:

• mailbox quota,
• mailbox password,
• synchronization status,
• Internet connection,
• whether messages appear in Hostinger Webmail.

If the messages appear in Webmail but not Outlook, the problem is probably with Outlook or IMAP synchronization rather than your domain's MX records.

Hostinger Email Works in Webmail but Not Outlook

This is an extremely useful troubleshooting clue.

If Webmail works correctly but Outlook does not, investigate the local computer.

Check:

• Outlook settings
• saved passwords
• Outlook profile
• IMAP settings
• SMTP settings
• Windows Firewall
• antivirus
• SSL inspection
• DNS
• Internet connection
• Outlook installation

Avoid changing domain-wide DNS records simply because one Outlook computer has a problem.

Hostinger Email Doesn't Work in Webmail or Outlook

If neither works, investigate the Hostinger/domain side first.

Check:

• Hostinger email subscription
• mailbox status
• mailbox password
• mailbox quota
• domain status
• DNS
• MX records
• Hostinger service status

Changing Outlook settings repeatedly will not solve a server-side problem.

Understanding MX Records

MX stands for Mail Exchange.

MX records tell other mail servers where email for your domain should be delivered.

They are different from the IMAP settings Outlook uses to retrieve your mailbox.

Therefore:

MX records → Internet email delivery to your domain

IMAP → Outlook retrieving/synchronizing mailbox contents

SMTP → Outlook sending messages

This distinction is extremely important during troubleshooting.

SPF, DKIM and DMARC

A properly configured business email domain should also use appropriate email authentication.

SPF

SPF specifies which mail servers are authorized to send email on behalf of your domain.

DKIM

DKIM digitally signs outgoing messages, allowing receiving servers to validate their authenticity.

DMARC

DMARC defines how receiving systems should handle messages that fail SPF/DKIM authentication and provides reporting capabilities.

SPF, DKIM and DMARC are domain-level email security settings, not Outlook IMAP settings.

They can help protect your domain from spoofing and improve email authentication.

Do Not Randomly Change DNS to Fix Outlook

Suppose:

• Hostinger Webmail works,
• external emails arrive correctly,
• other users are working,
• but Outlook on one PC does not work.

In that situation, changing MX or other DNS records is generally the wrong first step.

The problem is more likely related to that:

• computer,
• Outlook installation,
• Outlook profile,
• account settings,
• credentials,
• firewall,
• antivirus,
• network,
• or DNS resolver.

Remember that DNS changes can affect every email user on the domain, not just the problematic PC.

Hostinger Mailbox Storage Is Full

A full mailbox can cause synchronization and email-delivery problems.

Check mailbox usage from your Hostinger account.

Possible actions include:

• empty Trash,
• delete unnecessary messages,
• remove unnecessary large attachments,
• archive older email,
• increase mailbox storage if appropriate.

For business mailboxes, verify backup and retention requirements before permanently deleting old messages.

Outlook IMAP Synchronization Is Very Slow

Large mailboxes can take substantial time to synchronize when first added to Outlook.

This is particularly common when a mailbox contains:

• several years of email,
• thousands of messages,
• many folders,
• large attachments,
• several gigabytes of data.

Allow the initial synchronization to complete.

Do not immediately assume that IMAP configuration failed simply because all historical messages have not appeared yet.

Sent Emails Don't Appear on Another Device

When IMAP is used, Outlook should synchronize server folders.

If Sent Items are inconsistent:

1. Check the Sent folder in Hostinger Webmail.
2. Determine which server folder Outlook is using.
3. Allow Outlook to finish synchronization.
4. Verify both devices use IMAP.
5. Restart Outlook.
6. Check folder mapping if applicable.

POP3 behaves differently and is not designed for complete folder synchronization.

Duplicate Emails After Changing POP3 to IMAP

Be careful when converting an existing Outlook configuration from POP3 to IMAP.

Old messages may already exist locally in a PST file while Outlook downloads server copies through the new IMAP account.

This can produce duplicates.

Before migration:

• back up Outlook,
• inspect the PST,
• determine which messages exist locally,
• determine what remains on the server,
• check Sent Items,
• identify existing Outlook data files.

Do not delete the old Outlook profile until you have verified your email data.

Backup Outlook Before Major Changes

This is especially important for old POP3 configurations.

Before deleting:

• an Outlook profile,
• a POP account,
• PST files,
• locally stored email,

make a suitable backup.

Some old messages may exist only on the computer.

Deleting a POP3 account or PST without checking its contents can therefore cause data loss.

Test Hostinger Email After Outlook Configuration

Perform several tests after setup.

Test 1 – Send an Email to Yourself

Send from:

user@yourdomain.com

to:

user@yourdomain.com

Test 2 – Send to an External Address

Send a test message to:

• Gmail
• Outlook.com
• another external mailbox

Test 3 – Reply Back

Reply from the external mailbox to your Hostinger address.

Test 4 – Check Hostinger Webmail

Confirm that received and sent messages appear correctly.

Test 5 – Check Another Device

If the mailbox is also configured on a phone, check whether the same messages and folders synchronize.

Advanced Windows Test – Check Hostinger IMAP Port 993

IT administrators can test basic TCP connectivity using PowerShell.

Run:

Test-NetConnection imap.hostinger.com -Port 993

Look for:

TcpTestSucceeded : True

If it returns:

TcpTestSucceeded : False

investigate the network connection, DNS, firewall, antivirus, router or ISP.

Test Hostinger SMTP Port 465

Run:

Test-NetConnection smtp.hostinger.com -Port 465

Successful result:

TcpTestSucceeded : True

If SMTP 465 fails but Hostinger's alternative SMTP configuration is required, test:

Test-NetConnection smtp.hostinger.com -Port 587

Test Hostinger POP3 Port 995

For POP3:

Test-NetConnection pop.hostinger.com -Port 995

A successful TCP test proves that the computer can establish basic network connectivity to the server/port.

It does not prove that your username, password or Outlook configuration is correct.

Test Hostinger DNS Resolution

Run:

nslookup imap.hostinger.com

Then:

nslookup smtp.hostinger.com

If Windows cannot resolve these hostnames, troubleshoot DNS/network connectivity before repeatedly changing Outlook settings.

Antivirus and Firewall Problems

Some endpoint security products inspect encrypted email connections.

If Hostinger email suddenly stops working in Outlook after an antivirus or security-software update, investigate:

• SSL inspection
• email scanning
• firewall filtering
• application control
• network filtering

Do not permanently disable endpoint security just to make Outlook work.

Use controlled troubleshooting and restore security protection afterward.

Outlook Works on Mobile Hotspot but Not Office Internet

This is another useful diagnostic test.

If Outlook works through a mobile hotspot but fails on your office Internet connection, investigate:

• office firewall
• router
• DNS server
• security appliance
• proxy/filtering
• ISP restrictions
• outbound port policies

This can quickly distinguish a PC/account problem from a network-specific problem.

New Outlook vs Classic Outlook

Microsoft currently provides both New Outlook for Windows and Classic Outlook.

Their menus are different.

If you see traditional options such as:

File → Account Settings

you are generally using Classic Outlook.

New Outlook uses a newer Settings-based interface.

Therefore, instructions found online can appear different even though the server settings themselves are correct.

Most Common Hostinger Outlook Configuration Mistakes

These are some of the most common problems:

• Using only the mailbox name instead of the complete email address
• Entering the Hostinger account/hPanel password instead of the mailbox password
• Choosing POP3 when IMAP was intended
• Incorrect incoming server
• Incorrect SMTP server
• Wrong port number
• Incorrect encryption
• SMTP authentication disabled
• Changing MX records unnecessarily
• Deleting a POP Outlook profile without backing up the PST
• Assuming Outlook synchronization should complete immediately
• Confusing SMTP problems with IMAP problems

Recommended Hostinger Outlook Configuration

For most Hostinger Email users:

Account Type: IMAP

Incoming Server:
imap.hostinger.com

Port:
993

Encryption:
SSL/TLS

Outgoing Server:
smtp.hostinger.com

Port:
465

Encryption:
SSL/TLS

Username:
Complete email address

Password:
Hostinger mailbox password

SMTP Authentication:
Enabled

If SMTP 465 has an encryption/connection issue, Hostinger also documents:

SMTP: smtp.hostinger.com
Port: 587
Encryption: STARTTLS/TLS

Quick Troubleshooting Decision Tree

Webmail works but Outlook doesn't

Check Outlook configuration, credentials, IMAP/SMTP ports, SSL/TLS, antivirus, firewall and local network.

Outlook receives but cannot send

Check SMTP server, port, encryption and SMTP authentication.

Outlook sends but cannot receive

Check IMAP configuration and mailbox synchronization.

Neither Webmail nor Outlook receives email

Check mailbox status, domain, DNS, MX records and Hostinger email service.

Outlook works on mobile hotspot but not office broadband

Investigate your office firewall, DNS, router, security appliance or ISP.

Old emails disappeared after changing from POP3

Stop making account changes and inspect your previous PST/profile or backup before deleting anything.

Frequently Asked Questions (FAQ)

1. What is the Hostinger IMAP server?

For standard Hostinger Email accounts, the IMAP server is:

imap.hostinger.com

Port:

993

Encryption:

SSL/TLS

2. What is the Hostinger SMTP server?

The standard outgoing SMTP server is:

smtp.hostinger.com

Port:

465

Encryption:

SSL/TLS

3. Can I use SMTP port 587 with Hostinger?

Yes. Hostinger also documents SMTP port 587 with STARTTLS/TLS as an alternative when encryption or connection problems occur with the standard port 465 configuration.

4. What is the Hostinger POP3 server?

Use:

pop.hostinger.com

Port:

995

Encryption:

SSL/TLS

5. Should I use IMAP or POP3 for Hostinger Email?

For most users, IMAP is recommended because it synchronizes messages and folders between Outlook, Webmail and other devices.

6. Can Hostinger Email be configured in Microsoft Outlook?

Yes. Hostinger Email can be configured in Outlook using IMAP/SMTP or, when specifically required, POP3/SMTP.

7. Does Hostinger Email work with New Outlook for Windows?

Yes. Hostinger email can be added to New Outlook. The account-management interface differs from Classic Outlook, so the screens may not look identical.

8. Does Hostinger Email work with Outlook 2016?

Yes, provided the Outlook version and Windows environment support the required secure connection and your account is configured correctly.

The same general settings can also apply to Outlook 2019, Outlook 2021, Outlook 2024 and Microsoft 365 Classic Outlook.

9. Why can Outlook receive Hostinger email but not send it?

This usually points toward an SMTP configuration or connectivity problem.

Check:

smtp.hostinger.com

Port 465 with SSL/TLS, SMTP authentication, your complete email address and mailbox password.

10. Why can Outlook send email but not receive it?

Check the incoming IMAP server:

imap.hostinger.com

with port 993 and SSL/TLS.

Also verify mailbox quota and whether new messages appear in Hostinger Webmail.

11. Why does Outlook keep asking for my Hostinger password?

Possible causes include an incorrect mailbox password, wrong username, incorrect server settings, saved credential problems, authentication failure, profile corruption or security/network interference.

First confirm that the password works in Hostinger Webmail.

12. What username should I use in Outlook?

Normally use your complete email address.

For example:

sales@yourdomain.com

Do not normally enter only:

sales

13. Is my Hostinger hPanel password the same as my email password?

Not necessarily.

Outlook requires the password assigned to the email mailbox. Do not assume your Hostinger account/hPanel login password is the mailbox password.

14. Why does Hostinger Webmail work but Outlook doesn't?

If Webmail works normally, the mailbox and server are probably functioning.

Concentrate troubleshooting on Outlook settings, credentials, your Outlook profile, Windows networking, firewall, antivirus and IMAP/SMTP connectivity.

15. Do I need to change MX records to configure Outlook?

Normally, no.

MX records control where Internet email for your domain is delivered. Outlook connects to your mailbox using IMAP/POP and SMTP.

Do not change working MX records simply because one Outlook installation has a problem.

16. Does Outlook need SMTP authentication for Hostinger?

Yes, outgoing mail normally requires authenticated SMTP. Use your complete email address and mailbox password.

17. Why is my Hostinger mailbox slow to synchronize with Outlook?

Large IMAP mailboxes can take time to synchronize, particularly when they contain years of email, thousands of messages, many folders or large attachments.

18. Can antivirus software block Hostinger email in Outlook?

Yes. Some endpoint-security software can interfere with SSL/TLS email connections through email scanning, SSL inspection, firewall filtering or application control.

19. How can I check whether port 993 is blocked?

Open PowerShell and run:

Test-NetConnection imap.hostinger.com -Port 993

If TcpTestSucceeded is False, investigate the network, firewall, DNS, security software, router or ISP.

20. How can I check whether Hostinger SMTP is reachable?

Run:

Test-NetConnection smtp.hostinger.com -Port 465

You can also test port 587 when troubleshooting Hostinger's alternative STARTTLS configuration.

21. Should I configure the same mailbox using both POP3 and IMAP?

Usually, no.

Using both without a specific technical reason can cause confusion involving local messages, server copies, folders, Sent Items and Outlook data files.

Choose IMAP for normal modern usage.

22. Can changing POP3 to IMAP create duplicate emails?

Yes. Existing locally downloaded POP messages may coexist with messages downloaded again from the server through IMAP.

Back up Outlook and inspect your PST before migration.

23. Will deleting an Outlook POP account delete my old email?

It can create a serious risk if old messages exist only inside a local PST.

Always verify and back up Outlook data before deleting an established POP configuration.

24. What should I check if Hostinger email suddenly stops working in Outlook?

First check Hostinger Webmail.

If Webmail works, investigate Outlook, credentials, network connectivity, firewall, antivirus and server settings.

If Webmail also fails, investigate the mailbox, Hostinger service, domain, DNS and MX configuration.

25. Where can I verify my exact Hostinger email settings?

Log in to Hostinger hPanel and locate the configuration information for the mailbox under the Email section and Connect Apps & Devices.

Use the settings displayed by Hostinger for your specific mailbox as the authoritative configuration.

Final Checklist

Before considering the configuration complete, verify:

✓ Hostinger Webmail login works
✓ Full email address is used as username
✓ IMAP server is correct
✓ IMAP port is correct
✓ SMTP server is correct
✓ SMTP port is correct
✓ SSL/TLS is enabled
✓ SMTP authentication is enabled
✓ Sending to an external address works
✓ Receiving from an external address works
✓ Sent Items synchronize
✓ Mobile/Webmail synchronization works
✓ Mailbox storage is not full
✓ DNS/MX records are correct if external mail delivery fails

For most users, the best configuration is:

IMAP: imap.hostinger.com – Port 993 – SSL/TLS

SMTP: smtp.hostinger.com – Port 465 – SSL/TLS

Use SMTP port 587 with STARTTLS/TLS as an alternative when required.

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