Scanning documents and sending them through email is one of the easiest ways to share digital files without using a computer. Whether you need to send an invoice, sign a contract, share business paperwork, or email a personal document, most modern multifunction printers can handle the process directly.
If you are wondering how to scan to email, the process is usually straightforward. You place your document on the scanner, select the email option, enter the recipient’s address, and send the scanned file.
However, the exact steps can vary depending on your printer model and email provider. Sometimes, users also encounter problems such as incorrect SMTP settings, authentication errors, large attachments, or emails that never arrive.
This guide explains how to scan to email using a printer, what settings you may need, and how to fix common problems that prevent scanned documents from reaching the recipient.
What Does Scan to Email Mean?
Scan to email is a printer feature that lets you scan a physical document and send its digital copy directly to an email address.
Instead of scanning a document to your computer, saving it, opening an email application, and attaching the file manually, your printer can perform these steps through its built-in email functionality.
Most network-enabled multifunction printers use an outgoing email server, usually through SMTP (Simple Mail Transfer Protocol), to send scanned documents.
For example, you can use scan to email to:
- Send signed documents to a client.
- Share invoices and receipts with your accounting team.
- Email scanned forms to a colleague.
- Send contracts and business records.
- Share personal documents without transferring files manually.
The feature is particularly useful in offices where employees regularly need to digitize and share paperwork.
How to Scan to Email Using a Printer
The exact process depends on the manufacturer and model, but most printers follow a similar procedure.
Before starting, make sure your printer is connected to the network and that its scan-to-email feature has been configured.
Step 1: Connect Your Printer to the Network
Your printer needs a working network connection to communicate with an email server.
You can usually connect it through:
- A Wi-Fi network.
- An Ethernet cable.
- An office network managed by your IT administrator.
Open the printer’s network settings and confirm that it has successfully connected. If your printer cannot access the network, it will not be able to send scanned documents through email.
Step 2: Configure the Email or SMTP Settings
Many printers require outgoing mail server details before you can use scan to email.
Open the printer’s embedded web interface by entering its IP address into a browser connected to the same network. Look for a section named Email, Scan to Email, or SMTP.
Depending on your email provider and printer, you may need to enter:
| Setting | Description |
| SMTP server | Address of the outgoing email server |
| SMTP port | Port used for email communication |
| Encryption | Required SSL/TLS or STARTTLS method |
| Username | Email account used for authentication |
| Password | Current password or supported app password |
| Sender address | Address displayed as the email sender |
For example, Gmail commonly uses smtp.gmail.com, while Microsoft 365 commonly uses smtp.office365.com.
The correct port, encryption method, and authentication requirements depend on the provider and account configuration. Always check your provider’s current documentation before entering these details.
Some newer email services also require OAuth authentication or specific SMTP settings that older printers may not support.
Step 3: Place Your Document on the Scanner
Once the email settings are configured, prepare the document you want to send.
You can usually use one of two scanning methods:
Flatbed scanner: Place a single page or delicate document face down on the scanner glass. Align it with the indicated corner or markings.
Automatic Document Feeder (ADF): Place multiple pages in the document feeder, following the paper direction shown on the printer.
Make sure the pages are straight and free from staples or paper clips.
Step 4: Select the Scan to Email Option
Open the printer’s control panel and select the scanning option.
Depending on your printer, it may appear as:
- Scan to Email
- Scan and Send
- Email Document
Select the appropriate option to continue.
Step 5: Enter the Recipient’s Email Address
Enter the email address of the person who should receive the scanned document.
Double-check the spelling and domain before continuing. A small typing mistake can send the document to the wrong address or cause delivery failure.
Some printers allow you to select saved email contacts instead of entering addresses manually.
Step 6: Choose Your Scan Settings
Before sending, review the available scanning options.
Common settings include:
- File format: PDF, JPEG, or another supported format.
- Resolution: 200 or 300 DPI is often sufficient for everyday documents.
- Color mode: Color, grayscale, or black and white.
- Paper size: Select the correct document dimensions.
- File compression: Use compression if the printer supports it and the document is too large.
For contracts, invoices, and multi-page documents, PDF is generally a convenient format because it keeps pages together in one file.
Step 7: Press Send and Confirm the Result
After reviewing the recipient and scan settings, press Start, Send, or the corresponding button on your printer.
Wait for the scanning and transmission process to finish.
Your printer may display a confirmation such as “Email Sent” or “Job Completed.” Remember that this notification does not always confirm that the message reached the recipient’s inbox.
Ask the recipient to check their inbox and spam folder. If the email does not arrive, use the troubleshooting steps below.
Why Does My Printer Say Email Sent but Email Is Not Received?
One confusing scan-to-email problem occurs when the printer confirms that an email has been sent, but the recipient never receives it.
This happens because successful submission to an outgoing mail server and final delivery to the recipient’s inbox are two different things.
The email may be filtered, rejected, delayed, or quarantined after leaving the printer.
Here are seven ways to investigate the problem.
1. Check the Spam and Junk Folders
Start by checking the recipient’s Spam or Junk folder.
Automated printer emails often contain a generic subject line and a PDF attachment with very little message text. Some email filters may consider this type of message suspicious.
What to do:
- Open the Spam or Junk folder.
- Search for the printer’s sender address.
- Check other folders, including Promotions, Updates, or Other.
- Ask your IT administrator to check the email quarantine if you use a business account.
If you find the message, mark it as “Not spam” and add the sender to your safe senders list if supported.
2. Verify the Sender Email Address
The sender address configured on your printer must be valid and compatible with the outgoing email account.
A typing error, expired account, or unauthorized sender address can prevent successful delivery.
Open your printer’s web interface and review the sender address in its email settings.
Check that:
- The address exists.
- The spelling and domain are correct.
- There are no unnecessary spaces.
- The address is permitted by your email provider.
- The sender identity is compatible with the authenticated SMTP account.
Using a dedicated mailbox for printer scanning can also make email management easier.
3. Review SMTP Settings and Authentication
Incorrect SMTP settings are another common reason scan-to-email stops working.
Check the server hostname, port, encryption, username, and password configured on your printer.
Some email providers no longer support older sign-in methods. Depending on your account and device, you may need an app password, OAuth authentication, or an enabled SMTP authentication setting.
If scan to email worked previously but suddenly stopped, check whether your email password or security policies have changed.
Use the printer’s connection test if available and review the complete error message.
4. Check Attachment Size Restrictions
Large scanned files can exceed the email size limit imposed by the sending or receiving service.
High-resolution color scans and documents containing many pages can become surprisingly large.
Try these adjustments:
- Reduce the resolution to 200 or 300 DPI.
- Use grayscale or black-and-white scanning when appropriate.
- Scan fewer pages in each email.
- Enable PDF compression if available.
- Check your email provider’s attachment size limit.
If the recipient uses a company or school account, ask whether its email security system blocks large attachments.
5. Check for Rejected Email Notifications
If the email server rejects your scanned document, it may generate a bounce notification.
This notification is usually delivered to the sender mailbox configured on the printer.
Sign in to that mailbox and search for messages with subjects such as “Undeliverable” or “Delivery Status Notification.”
The notification may explain whether the recipient address is invalid, the mailbox is full, the attachment was rejected, or the SMTP server refused to relay the message.
Follow the instructions in the rejection notice or ask your email administrator for assistance.
6. Test With Another Email Address
Try sending a small test scan to a different email address.
Ideally, use an address from another email provider so you can compare the results.
- If the second address receives the scan, investigate the original recipient’s mailbox and email restrictions.
- If neither address receives it, review your printer’s sender account, SMTP settings, and network connection.
- If only some providers receive the message, recipient-side filtering or email authentication may be responsible.
This test can help narrow down the problem without changing multiple settings unnecessarily.
7. Review Printer and Email Delivery Logs
If the problem continues, check the printer’s job history and email server records.
Many printers provide a communication log or scan-job history through their embedded web interface.
Look for SMTP connection errors, authentication failures, and transmission details.
Business email administrators may also be able to investigate messages through:
- Microsoft 365 Message Trace.
- Google Workspace Email Log Search.
- Third-party SMTP delivery dashboards.
These records can help determine whether the email was accepted, rejected, delayed, or quarantined.
If there is no record of the message reaching the mail server, investigate the printer’s network connection and SMTP configuration.
Common Scan-to-Email Problems and Their Solutions
The following table summarizes common issues users may experience when learning how to scan to email.
| Problem | Possible reason | What to try |
| SMTP authentication failed | Incorrect credentials or unsupported login method | Verify authentication requirements |
| Email sent but not received | Spam filtering or recipient rejection | Check spam and bounce notifications |
| SMTP connection timeout | Network restrictions or unavailable server | Check network access and server details |
| Attachment too large | Email size restrictions | Reduce resolution or compress the PDF |
| Invalid recipient | Incorrect email address | Verify the recipient’s details |
| Relay denied | SMTP server does not permit the current sender | Check authentication and relay permissions |
| Scan-to-email suddenly stopped | Password or security policy changed | Review recent account changes |
Error messages vary by printer model and email provider, so use the full error details when diagnosing a problem.
Tips for Making Scan to Email More Reliable
Once your printer is configured, a few simple practices can help avoid future problems.
Use a dedicated sender account: A separate mailbox makes it easier to manage printer emails and monitor delivery notifications.
Keep credentials updated: Update stored credentials whenever the account password or authentication requirements change.
Choose suitable scan settings: Avoid unnecessarily high resolution and oversized attachments.
Maintain printer firmware: Install appropriate firmware updates to improve compatibility and address known issues.
Check network connectivity: Make sure the printer can access the network and the required email server.
Perform occasional test scans: Send a test document after changing email settings, network configurations, or account security policies.
Frequently Asked Questions
How do I scan a document and send it by email?
Place your document on the scanner glass or in the automatic document feeder. Select Scan to Email on the printer, enter the recipient’s address, choose your scan settings, and press Send. Your printer must have the required email server settings configured before this feature can work.
Can I scan to email without a computer?
Yes. Many multifunction printers allow you to scan and send documents directly to an email address through their control panels. However, the feature must be supported by your printer and configured with the necessary network and email settings.
What is SMTP in scan to email?
SMTP stands for Simple Mail Transfer Protocol. It is the protocol used by your printer to submit outgoing email to a mail server. The server address, port, encryption, and authentication settings must be compatible with your email provider.
Why does my printer say email sent but nothing arrives?
The printer may have successfully submitted the message to its outgoing email server, but the recipient’s email service may have filtered, rejected, delayed, or quarantined it. Check spam folders, sender settings, attachment restrictions, and delivery records.
What is the best file format for scan to email?
PDF is usually a convenient option for contracts, invoices, forms, and multi-page documents. JPEG can be useful for individual images or photographs. The best format depends on the document and the recipient’s requirements.
Why is my scan-to-email feature suddenly not working?
A changed password, updated email security policy, disabled SMTP authentication, expired app password, network configuration change, or unsupported authentication method can interrupt the service. Review recent changes before resetting your printer.
How can I reduce the size of a scanned email attachment?
Lower the scan resolution, select grayscale or black and white, reduce the number of pages, or enable PDF compression if your printer supports it. These adjustments can make scanned files easier to send.
Final Thoughts
Learning how to scan to email can save time when you regularly share documents, invoices, forms, and other paperwork. Once your printer has a working network connection and compatible email settings, you can send scanned files directly without first saving them to a computer.
The most important part is configuring your SMTP settings correctly and choosing suitable scan options. If your printer displays “Email Sent” but the recipient never receives the message, check spam folders, sender details, authentication, attachment restrictions, and delivery records.
By following the steps in this guide, you can set up scan to email, understand how the process works, and troubleshoot common problems that interrupt email delivery.