Affected Products:
Multifunction: CX725, CX727, XC4140, XC4143, XC4150, XC4153, CX820, CX825, CX827, CX860, XC6152, XC6153, XC8155, XC8160 and XC8163

Issue Description:
The Fax Receive setting to forward incoming faxes to e-mail is ignored, and all incoming faxes are printed.
Pending seen on Fax Job Log

Solution:

Confirm that you are able to send and receive faxes.

Confirm that scan-to-email is working by testing an e-mail shortcut.

If both individual functions are working properly, then check your printer's firmware level.
xref_Check_xref should you be unfamiliar with this procedure.

If the FW-level is ##.030.086, or below, then contact Lexmark Technical Support

Update firmware.
should you be unfamiliar with this procedure.

Explanation:
A particular SMTP failure relating to fax forwarding was identified and addressed using a special PE-released version of firmware.
Enabling fax forwarding involves navigating to Settings > Fax > Analog Fax Setup > Fax Receive Settings > Admin Controls.

Still Need Help?
Have the following available when calling Lexmark Technical Support;
Printer model(s)
Printer serial number
LEGACY ID: SO8210