Hi
Welcome to the HP Support Community. I'd be happy to assist you with the "Server error" while scanning to email from the printer.
To better assist you - Are you able to scan to email from the computer?
Meanwhile, you can try these steps:
1. From the printer control panel display, touch ( ePrint ), and then touch (Web Services Settings).
2. Touch Remove Web Services.
3. Restart the router and the printer.
4. On the printer control panel display, from the Home screen, touch ( Setup ).
5. Touch Web Services.
6. Touch Yes to accept the Web Services terms of setup.
7. The printer will automatically check updates and set up Web Services.
8. Touch OK when you see Web Services have been set up successfully.
9. When the printer is connected to the server, the printer prints an information page, and shows Web Services Summary on the screen.
Once done, set up a scan to email again.
Setup Scan to Email -
1.) Click Start, and then click Programs.
2.) Click HP, click the name of the printer, and then click Scan to Email Wizard.
3.) In the Outgoing Email Profiles dialog, click the New button. The Scan to Email Setup dialog opens.
4.) On the 1. Start page, enter the sender's email address in the Email Address field.
5.) In the Display Name field, enter the sender's name. This is the name that will display on the printer control panel.
6.) To require a PIN to be entered on the printer control panel before the printer can send an email, enter a 4-digit PIN in the Security PIN field, and then re-enter the PIN in the Confirm Security PIN field, and then click Next.
7.) On the 2. Authenticate page, enter the SMTP Server and Port Number.
8.) If you are using Google™ Gmail for email service, select the Always use secure connection (SSL/TLS) check box.
9.) Select the Maximum Size of Email from the drop-down menu.
10.) If the SMTP server requires authentication to send an email, select the Email Log-in Authentication check box, and then enter the User ID and Password, and then click Next.
11.) On the 3. Configure page, to automatically copy the sender on email messages sent from the profile, select Include sender in all email messages sent out successfully from the printer, and then click Next.
12.) On the 4. Finish page, review the information and verify all the settings are correct. If there is an error, click the Back button to correct the error. If the settings are correct, click the Save and Test button to test the configuration.
13.) When the Congratulations message displays, click Finish to complete the configuration.
Step 2 Scan to Email -
1.) Load the document on the scanner glass according to the indicators on the printer.
2.) From the Home screen on the printer control panel, touch the Scan icon .
3.) Touch Scan to E-mail.
4.) Touch Send an E-mail.
5.) Select the From address that you want to use. This is also known as an "outgoing email profile."
6.) Touch the To button and select the address or group to which you want to send the file. Touch the Done button when finished.
7.) Touch the Subject button to add a Subject line.
8.) Touch the Next button.
The scan settings will display on the printer control panel screen.
9.) To change any of the scan settings, touch the Settings button, and then select the desired settings.
After selecting the desired settings, continue to the next step.
10.) Touch the Scan button to start the scan job.
You may also refer to this document - HP Printers - How to Scan (Windows)
Hope this helps! Keep me posted.
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