topic Re: imageCLASS MF751Cdw fails to send scans to file or email in address book in Office Printers

imageCLASS MF751Cdw fails to send scans to file or email in address book

RussKing — Sun, 07 Dec 2025 21:36:35 GMT

I keep getting Error #806. Maybe a sample of Address Book entries in the proper format would help me.

Re: imageCLASS MF751Cdw fails to send scans to file or email in address book

shadowsports — Mon, 08 Dec 2025 00:03:09 GMT

Greetings,

See my previous post here for hints.

Re: ImageCLASS MF753cdw Remote UI Missing Network ... - Canon Community

If you provide your mail host, I can provide more specific information.

Re: imageCLASS MF751Cdw fails to send scans to file or email in address book

alexajames — Mon, 08 Dec 2025 16:07:23 GMT

Error #806 usually means the scanner can’t authenticate with the destination (email server or network folder). Double-check that each Address Book entry has the correct username, password, SMTP settings, and folder path. Even a small typo in the email address, domain, or credentials can trigger this error.

A correctly formatted entry should include:

Full email address
Correct SMTP server + port
Authentication enabled
Valid username/password

Updating these settings often resolves Error 806.