My Email Account Is Sending Messages I Never Wrote

1. Problem

You open your email's Sent folder and find messages you do not remember writing. Some may contain suspicious links, strange attachments, requests for money, or short messages sent to people in your contact list. In other cases, friends tell you they have received spam from your address, even though you have not sent anything.

This can be alarming because email is often connected to banking services, social media accounts, cloud storage, and password recovery. If someone gains control of your email, they may be able to access other accounts linked to it.

The problem can affect Gmail, Outlook, Yahoo Mail, and other email services. It may begin suddenly, continue after you change your password, or return after you remove suspicious messages.

Not every unexpected email means your account has been hacked. A connected application, an automatic forwarding rule, a compromised device, or email spoofing could be responsible. The important step is to identify which situation you are dealing with before assuming the account is secure.

2. Why It Happens

Several different problems can make it appear that your email account is sending messages without your permission. The correct solution depends on what is actually happening.

Someone has gained access to your email account

An attacker may have obtained your password through a phishing message, a fake login page, a data breach, or malware on your device. Once inside, they can send messages, read private conversations, create forwarding rules, and change account settings.

Attackers sometimes use a compromised account to target people who already trust the account owner. A message sent from your genuine address is more likely to be opened than an unfamiliar spam email.

Your password has been exposed

Using the same password across multiple websites creates a security risk. If one service suffers a data breach, criminals may try the exposed password on Gmail, Outlook, or other email providers.

Even a strong password becomes ineffective if you enter it into a fraudulent website or share it with an untrusted application.

A connected app has permission to send email

Some email services allow third-party applications to read messages, manage your inbox, or send emails on your behalf.

An application you connected months ago may still have access even if you no longer use it. If that application is compromised or has excessive permissions, changing your email password alone might not immediately revoke every existing authorization.

Automatic forwarding or filters are hiding activity

Attackers sometimes create inbox rules that forward incoming messages to another address, move security alerts into obscure folders, or automatically delete particular emails.

These rules can make it harder to notice password reset notifications and warnings about unfamiliar sign-ins.

Email filters can also be created accidentally, particularly when users experiment with settings or connect email management tools.

Malware is interfering with your device

A malicious browser extension, an infected computer, or an unsafe application may steal saved passwords or capture login sessions.

If the device itself remains compromised, an attacker could regain access after you secure the account. This is one reason suspicious activity may continue even after a password change.

Someone is spoofing your email address

Email spoofing occurs when a sender falsifies the address displayed in an email's From field. The message may look as though it came from you even though it was sent from another system.

In this situation, the attacker may never have accessed your mailbox. You might receive reports of spam from people you know, while your Sent folder contains no corresponding messages.

This distinction matters because changing your password will not stop someone from spoofing your address.

3. Fastest Fix

If your email account is actively sending suspicious messages, secure it before spending time investigating individual emails.

Step 1: Change your email password

Use a trusted device and open your email provider's official website or application.

For Gmail, visit https://myaccount.google.com/security.

For Microsoft accounts, visit https://account.microsoft.com/security.

For Yahoo accounts, visit https://login.yahoo.com/account/security.

Change your password to a new, unique one that you have not used on another website. Avoid following password-reset links from suspicious messages.

If you suspect your phone or computer is infected, use a different, trusted device to make these changes.

Step 2: Sign out unfamiliar devices and sessions

Open your account's security settings and review recent sign-in activity.

Look for unfamiliar devices, locations, browsers, or sign-in times. Location information is not always exact because mobile networks and VPNs can make legitimate sign-ins appear to come from another area.

Sign out unfamiliar sessions and use the provider's option to sign out of other devices where available.

Changing your password is important, but reviewing active sessions helps you identify access that should no longer be permitted.

Step 3: Enable two-step verification

Two-step verification adds another security check when someone tries to sign in.

Depending on your provider, you may use an authenticator app, a security key, a passkey, or a verification code. A passkey or security key can provide stronger protection against phishing than ordinary SMS codes.

For Google accounts, open the Security section of your Google Account and select 2-Step Verification.

Keep your recovery methods up to date and store backup codes somewhere safe. Never give a verification code to someone who contacts you unexpectedly.

Step 4: Check the Sent folder

Open your Sent folder and examine the suspicious messages.

Pay attention to when they were sent, who received them, and whether they contain attachments or links. If messages appear there that you did not write, someone or something may have used your account's sending capability.

Do not open suspicious attachments or click their links while investigating.

If there are no unfamiliar messages in Sent, do not automatically conclude that your account is safe. Check the provider's sign-in history, account rules, and any reports from recipients. Some sending methods may not leave the same visible evidence in your normal Sent folder.

Step 5: Remove suspicious connected applications

Review the applications and services authorized to access your email account.

Remove anything you do not recognize or no longer need, particularly applications with permission to send messages or manage your mailbox.

For Google accounts, open your Google Account security settings and review third-party connections. For Microsoft accounts, review the applications and permissions associated with your account.

Only revoke access after checking that the application is not something you genuinely use. You can reconnect a legitimate service later if necessary.

Step 6: Check forwarding and inbox rules

Open your email settings and look for automatic forwarding, filters, rules, and delegated access.

Remove any forwarding address you did not configure. Inspect rules that automatically delete security notifications, archive incoming messages, or redirect messages to unfamiliar folders.

In Gmail, check Settings, then See all settings, and review Forwarding and POP/IMAP and Filters and Blocked Addresses.

In Outlook, review Settings, Mail, and Rules, as well as any forwarding settings.

Menu names can vary between web, desktop, and mobile versions.

Step 7: Warn your contacts

If your account sent scam messages, tell affected contacts not to click links, download attachments, send money, or share verification codes from those messages.

Use a different trusted communication method if you are unsure whether your email account is fully secure.

This step helps limit the damage while you investigate the cause.

4. Advanced Methods

If the basic security steps do not stop the suspicious activity, investigate the account and devices more thoroughly.

Review detailed sign-in activity

Check the security dashboard for successful sign-ins, failed login attempts, new devices, and recent changes to recovery information.

Look for activity that does not match your normal usage. An unfamiliar successful sign-in followed by unexpected sent messages is stronger evidence of unauthorized access than a failed login attempt alone.

Save relevant screenshots or security notifications if you may need to report the incident to your provider.

If the attacker has changed your recovery email address or telephone number, restore the correct information after securing the account.

Revoke suspicious app passwords and email permissions

Some services support app-specific passwords for older email clients and devices. These credentials may have access separate from your normal password.

Remove app passwords you do not recognize or no longer need. Also review connected applications, delegated mailbox access, and any available mail protocols or integrations that you do not use.

For organizations using Microsoft 365 or Google Workspace, an administrator may need to inspect application consent, mailbox permissions, sign-in logs, and mail-flow settings.

A personal account and a company-managed mailbox may expose different security controls, so follow the options available from your provider.

Inspect email headers when spoofing is suspected

If someone claims to have received a message from you but you cannot find it in Sent, examine the message's full headers when possible.

Headers contain routing information and authentication results. The SPF, DKIM, and DMARC mechanisms help receiving mail servers assess whether a message is authorized to use a domain.

For a personal Gmail or Outlook address, authentication results and provider logs may help establish what happened, but they are not always conclusive by themselves.

If you own a custom email domain, configure SPF, DKIM, and DMARC correctly. These measures reduce the likelihood of successful spoofing but do not prevent every form of impersonation.

Do not publish complete email headers publicly without checking for private information.

Scan your computer and phone

If suspicious activity returns after you secure your account, check the devices you use to access email.

On Windows, update Microsoft Defender or another reputable security product and run a full scan. Review recently installed applications and remove browser extensions you do not recognize.

On Android, install security updates, review recently installed applications, and check app permissions. Google Play Protect can scan applications for potentially harmful behavior.

Avoid installing unknown APK files or security applications advertised through unsolicited messages.

If you suspect a browser extension is responsible, disable suspicious extensions and review your browser's saved passwords and active sessions. A clean browser or another trusted device can help you test whether the problem is tied to your usual setup.

If signs of compromise remain, consider resetting the affected device after backing up essential personal files. Avoid restoring suspicious applications or settings from the backup.

Use account recovery if you have lost control

If you cannot sign in, the password no longer works, or your recovery information has been changed, use your provider's official account recovery process.

For Google accounts, visit https://accounts.google.com/signin/recovery.

For Microsoft accounts, use the recovery options provided through Microsoft's official account website.

Follow the instructions carefully and provide accurate information. Avoid paying people who promise to recover accounts through unofficial methods, and never share your password or verification codes with them.

Once access is restored, review every important security setting again. An attacker may have changed recovery methods, added forwarding rules, or created other ways to regain access.

Contact your email provider if messages continue

If your account continues sending unauthorized messages despite a password change, session revocation, and removal of suspicious application access, contact the provider's official support or account security team.

Explain what you have already checked and provide relevant timestamps, message details, and sign-in information.

For work email, contact your organization's IT administrator. They may need to examine mailbox audit logs, delegated access, application permissions, and server-side sending activity that is not visible in the ordinary inbox.

Repeated unauthorized sending deserves further investigation rather than repeated password changes without identifying the cause.

5. Prevention

Preventing unauthorized email activity requires more than choosing a strong password. The account, connected applications, and devices all need appropriate protection.

Use a unique password

Never reuse your email password on social media, shopping websites, or other online services. Your email account is particularly important because it can often be used to reset passwords elsewhere.

A reputable password manager can generate and store unique passwords without requiring you to remember each one.

Keep two-step verification enabled

Use an authentication method that fits your account and security needs. A passkey, hardware security key, or authenticator app can provide stronger protection than relying solely on SMS verification codes.

Review recovery details periodically so you can still regain access if your phone is lost.

Limit connected applications

Before granting an application access to your mailbox, check what permissions it requests. A tool that only needs to organize messages should not automatically receive permission to send email if that capability is unnecessary.

Remove old integrations you no longer use.

Install software carefully

Keep your operating system, browser, email application, and security software updated. Updates often address vulnerabilities that attackers can exploit.

Avoid unofficial software downloads, cracked applications, suspicious browser extensions, and APK files from untrusted websites.

If unexpected behavior starts immediately after installing an application, review that installation as part of your investigation.

Review security alerts

Pay attention to notifications about unfamiliar sign-ins, password changes, new recovery methods, and newly authorized applications.

Do not ignore these alerts simply because you can still access your account. An attacker may be operating in the background without immediately locking you out.

Check your email settings periodically

Review forwarding rules, filters, delegated access, and connected applications. This is especially useful after traveling, using a shared computer, or connecting a new email management service.

Keep your recovery email address and telephone number current, and sign out of shared devices when you finish.

Understand the difference between hacking and spoofing

If people receive messages from your address but your mailbox shows no evidence of sending, ask for the original message details and investigate possible spoofing.

If your account was not compromised, the most effective response may involve domain-level email authentication or reporting the abuse to your provider rather than repeatedly changing passwords.

Knowing the difference helps you apply the correct solution instead of spending time on security steps that cannot address the actual cause.

6. FAQ

Why is my email sending spam without my permission?

Your email account may have been accessed by someone who obtained your password, or an authorized application may be sending messages on your behalf. Malware and stolen login sessions can also contribute. If recipients report suspicious messages but your Sent folder is clean, someone may be spoofing your address instead of using your account.

Will changing my email password stop someone from sending messages?

Changing your password is an important first step, but it may not resolve every case. You should also sign out unfamiliar sessions, revoke suspicious application permissions, remove unknown app passwords, and inspect forwarding rules. If the device you use is compromised, secure your account from a trusted device and investigate the affected device as well.

Can someone send emails from my address without hacking my account?

Yes. Email spoofing allows a sender to falsify the address displayed in the From field. The attacker may not have your password or access to your inbox. Check your Sent folder and account activity, and examine the original message headers when possible. If your mailbox is secure, report the impersonation to your email provider.

Why does my email keep sending suspicious messages after I change the password?

Repeated activity may indicate an active login session, a connected application, an app password, or a malicious program that can regain access. An attacker may also have created forwarding rules or other persistent changes. Revoke suspicious access, secure your devices, and review recent account changes. If the problem continues, ask your provider to investigate.

How can I tell whether someone has hacked my Gmail account?

Look for unfamiliar messages in Sent, unexpected security alerts, unknown devices in your Google Account activity, changed recovery details, and forwarding rules you did not create. None of these signs should be assessed in isolation, but several together can indicate unauthorized access. Review your Google Account security settings and secure the account immediately if you find suspicious activity.

Can a virus send emails from my account?

Malware can steal saved passwords, capture login sessions, or interfere with email activity. Some malicious programs may also access locally stored email or address information. Run a security scan, remove suspicious applications and browser extensions, and install available updates. If you suspect the device itself is compromised, change your email password from a separate trusted device.

Should I delete my email account if it keeps sending spam?

Deleting the account is usually not the first step. Secure it, investigate unauthorized access, remove suspicious rules and application permissions, and contact your provider if the activity continues. If someone is spoofing your address, deleting your account may not prevent further impersonation. Consider closing the account only after assessing the cause and protecting any services that depend on it.

How do I stop scammers from using my email address?

If scammers have access to your mailbox, change your password, revoke unauthorized access, enable two-step verification, and check your devices. If they are spoofing your address, report the abuse to your provider. Owners of custom email domains should also configure SPF, DKIM, and DMARC correctly. These protections reduce abuse but cannot guarantee that nobody will impersonate your address.

7. Summary

An email account that sends messages you never wrote may be compromised, controlled by an unauthorized application, affected by malware, or impersonated through email spoofing. Each cause requires a different response.

Start by securing your password, reviewing active sessions, enabling two-step verification, and checking connected applications and forwarding rules. If suspicious messages continue, inspect your devices and account activity or contact your email provider for further investigation.

Email security remains important because your inbox is often the gateway to other online accounts. Identifying the actual cause, removing unauthorized access, and maintaining good security habits can help protect your messages, contacts, and personal information.

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