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Lexmark B2442

Lexmark B2442

E-mail transmission error codes and recommendations

Issue description

An E-mail Transmission Failure message is displayed on the printer control panel, followed by a printed Scan Log.

This article shares some of the possible causes for the error codes depicted on the Scan Log.

Note:  Not all Lexmark multi-function printers support email authentication. If your printer does not, contact your E-mail Service Provider (ESP) to see other available options. You may have to perform a scan-to-pc if so.

Common "Scan Log" error codes

Error codePossible incorrect email configuration settingsRecommendations

Connection Failure: <-7>

Connection Error

Incorrect Port

Enter a different port number and test again. Common ports include 465, 587 and 25.

Connection Failure: <-10>

E-mail Server Not Set up.

  1. Validate CA is turned On when it should be turned Off or the opposite way.

  2. Username entered incorrectly.

  1. Try the opposing setting and test again.

  2. Try both the full name; e.g.,, and then just the username; e.g., test, and test again.

Connection Failure: <-11>

Cannot resolve server address.

  1. Incorrect SMTP Server Address

  2. Network communication problem

  3. Printer communication problem

  1. Enter the SMTP server address, and test again.

  2. Contact your internet service provider to identify a problem with the wide area network (WAN). Can you access the web?

  3. Test network-printer communication by opening the Embedded Web Server and printing a page or scanning a document to a PC.

Connection Failure: <-19>

Incorrect Port or SSL/TLS setting

Contact your ESP and verify SSL/TLS and Port combination, and test again.

Connection Failure: <-22>

SSL certificate validity has a future date.

The configured Date and Time are inaccurate.

Update and set the correct date and time on the device.

In the control panel, go to Settings > Device > Preferences > Date and Time > Configure.

Connection Failure: <-52>

Error sending to an email connection failure -52 self time certificate.

Validate CA has been checked.

Uncheck the "Validate CA" tickbox.

Access printer EWS > go to Settings > E-mail/FTP Settings > E-mail Settings > Setup E-mail Server > clear Validate CA

Connection Failure <504>

SMTP Server Authentication set to "NTLM"

Unrecognized Authentication Type. Change Authentication to applicable Plain/Login or None.

Connection Failure: <530>

  1. Enable SSL/TLSis turned Off when it's actually required.

  2. SMTP Server Authentication is set to No Authentication Required "None".

  1. Set to Negotiate or Required and test again.

  2. Set Authentication to applicable setting and test again. (Plain/Login, or NTLM.)

Authorization failed <534>


Enable your Gmail account access for less secure apps. To do so:

  1. Go to

  2. Click Account security > Suspicious activity.

  3. Click Allowing less secure apps to access your account.

  4. Under Access your account, click Allow less secure apps.

  5. Select Turn On.

Connection Failure <535>

Username and Password not accepted.

Change username and Password and test again.

Again, some ESPs require full email address ( and others require only the beginning Userid (hello) portion of the email address.

Passwords are sensitive to spelling, capitalization, and the use of symbols and characters.

Printer to email server communication flow and email error triggers

The printer initiates communication (Step 1) and closes the connection (Step 16).

Related articles

See this article to find out more about the E-mail Setup Wizard "Incomplete E-mail Configuration" message as seen with inkjet printers.


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