topic Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806 in Office Printers

MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

sh_tech — Fri, 25 Jan 2019 22:21:17 GMT

We just installed a new Color imageClass MF733CDW and configured it to scan to email, using the following settings:

SMTP Server: smtp.office365.com

Use SMTP Auth, username: authenticatedaccount@ourdomain.com with known good password

Checked TLS

Set Networking Port to 587

When trying to scan to email, the printer spits out a piece of paper that says "Error". The TX logs through the Remote UI says Error #806, which supposedly means the recipient email address isn't valid. But we know it is.

We also have an open SMTP relay. When I use those settings over port 25 with no authentication, the scan goes through just fine.

Can anyone think of anything else for us to look at? We've been an HP shop until now, so I might be missing a setting in this Canon UI somewhere? Or ... I dunno. I'm just stumped.

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

shadowsports — Sat, 26 Jan 2019 14:50:13 GMT

Your settings appear to be correct for outbound SMTP on O365.

I have seen issues where the password (characters may not be supported or allowed). If you are using any special characters other than alpha-numeric with one or more CAPS, try simplfying the password and retest. Believe the printer has to be restarted after a setting is changed and saved.

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

sh_tech — Tue, 29 Jan 2019 16:08:18 GMT

Thanks for your reply. Our password is alphanumeric only with a capital letter and 1 number at the end. We restart the printer after every single change. Still no joy.

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

Patrice — Mon, 04 Feb 2019 18:10:22 GMT

Hi sh_tech.

Please scan and attach a document to an email using the Canon IJ Scan Utility program on the computer. Please send the email to the address that you are experiencing the issue with. Do you receive any errors?

If there are no errors when sending the document this way, please call us at 1-800-OK-CANON (652-2666), Monday - Friday 10:00 a.m. to 6:30 p.m. ET (excluding holidays).

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

sh_tech — Tue, 05 Feb 2019 15:45:44 GMT

I will try that, but we have the printer installed on a print server and don't use the Canon utility program on our workstations... does that make a difference to your resolution?

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

Patrice — Fri, 08 Feb 2019 20:36:24 GMT

Hi sh_tech.

I apologize. I missed where you said that you were able to scan using port 25. Please try using a Gmail or Yahoo account and verify if you run into the same error.

If you need immediate assistance, please contact us at 1-800-OK-CANON (652-2666), Monday - Friday 10:00 a.m. to 6:30 p.m. ET (excluding holidays).

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

fortescomputers — Wed, 10 Jun 2020 15:19:24 GMT

Having a similar problem after changing GMail password. It now includes a & but the former one had ( and ) so if you have a list of what is acceptable, please share.

btw my error is 801 but I can't see anywhere in the UI where you enter SMTP settings like SSL/TLS or ports.

Thanks for sharing.

Matthew

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

herbys — Tue, 23 Jun 2020 23:56:57 GMT

The UI to set the port numbers is separate:

https://oip.manual.canon/USRMA-1354-zz-SS-enUS/contents/SS249_security_233changingportnumbers.html#09010040

Yes, it's really poor design, don't know who came up with that.

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

KurtAp2245 — Thu, 28 Jan 2021 21:11:07 GMT

Thanks a million to herbys.

I am finally successfully scanning to email from My Canon 445DW ( mf440 series ) using Office 365 0365.

I am using a standard SMTP with these settings in the canon.

smtp.office365.com

with username and password

painfully changed port to port 587

The UI to set the port numbers is separate:

https://oip.manual.canon/USRMA-1354-zz-SS-enUS/contents/SS249_security_233changingportnumbers.html#0...

Yes, it's really poor design, don't know who came up with that.

yes, I'm using TLS, but not STARTTLS as that isn't an option.

Method #1 here.

https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365

If Canon hadn't hidden the port change, it would have saved me a lot of grief.

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

Nik2018 — Thu, 17 Mar 2022 02:11:10 GMT

I bought Canon MF733 in 2018

The first year everything working great

.. " Scan to Email " ... very easy to set up just use printer display to add as many Email you want

and printer will do the job for you

When you want to scan to Email just pick any or many Email of your choices

My kids , my spouse can scan to Email when I travel oversea ... very easy

... BUT after software update in 2020 .... EVERYTHING GOES BAD ... VERY BAD ...!!!

Now the same Canon printer since 2018 cannot ... " Scan to Email " ... anymore ---- WHY ...??

What kind of software update made machine get worst ....??

I try to erase every software update and installed again from original CD with no success

I have NO SCAN TO EMAIL for more than 2 years now

So, I bought HP Inkjet Printer All in One HP at 4 times cheaper than this Canon MF733C at Amazon

This HP 7155 is a low cost inkjet WiFi printer Fax & Scanner and WORKING GREAT

----- Now I can SCAN TO EMAIL again -----

Set up is very easy .... Just like the first time I have Canon MF733C by put in Email Address as much as you want , the different is HP 7155 must send 1 Email at a time , Canon can send more than 1 Email .... BUT it is not working

Search YouTube .... some are good ...

https://youtu.be/bLygv3E0ODY .... go to Remote UI

https://youtu.be/O7bpPG2fC0w

... Try it

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

sh_tech — Wed, 03 Aug 2022 20:49:47 GMT

So, we have to go to the actual device itself to change the SMTP port? There is no way to do it via the web interface? Wow.

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

Nik2018 — Fri, 24 Feb 2023 13:02:46 GMT

The crazy thing about this printer is when I have this printer in May 2018

Everything working great ..!!! ...

I set up ... " Scan to Email " ... from printer screen , add 3 Gmail with no problem.

When I was away from home my kid will scan important mails to Gmail for me.

BUT after driver update at the end of 2018 , I can't Scan To Email any more.

Follow instructions on Youtube with no success.

Today is 02-24-2023 ... I can't use .. " Scan To Email " ... from Canon Printer.

I have to scan from HP Printer with else.

Why Scan To Email have problem after software update ..???

Software update suppose to make printer work better , but not for Canon Printer.

....

Re: MF733CDW Cannot Scan to Email with SMTP Auth - Error 806

shadowsports — Fri, 24 Feb 2023 15:14:13 GMT

Greetings,

Are you using Office 365 or Gmail for SMTP?

If gmail, I recommend setting up and using an App Password. Account > Security > App Passwords

You may want to start your own thread since this topic is 3 yrs old and the features in use at the time it was created are different that what you are using now.