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  1. #1
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    SMTP Authentication causes error

    I have been working on this issue for over a day now. We installed a MPC6004to replace a MPC5503. On both machines I am unable to get scan to email to work if SMTP Authentication is on. Customer uses gmail and I set up the gmail smtp server on port 465 (I have tried 587 as well. No change). I entered a valid gmail account and password but whenever I attempt to scan to email I get the error "Authentication with the destination has failed". I have logged into the gmail account successfully so the password is correct. I have also tried using other smtp servers with authentication and all have the same error. The 5503 is now at my office and connected to my network and is having the same issues and there is nothing on the network side blocking anything. It seems like it must be a setting on the copiers that is the issue but neither I nor my service manager can seem to figure it out.

    I just turned off authentication and tried using my smtp server on port 25 and this works, but when i turned authentication back on the error reappears.

    I am an IT guy not a tech but as I stated, I have been working with the service techs and manager and we are all thoroughly stumped.

    Any help or even just new ideas would be greatly appreciated.

  2. #2
    IT Manager 10,000+ Posts bsm2's Avatar
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    Re: SMTP Authentication causes error

    The gmail account turn on less secure apps.

  3. #3
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    Re: SMTP Authentication causes error

    I'm sorry. I forgot to mention that before but less secure devices is enabled on the gmail account. I have set up dozens of copiers using gmail and that was always the only issue. This is something else. Thanks for replying tho.

  4. #4
    IT Manager 10,000+ Posts bsm2's Avatar
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    Re: SMTP Authentication causes error

    set the second dns to 8.8.8.8

  5. #5
    Junior Member Stomp'Em's Avatar
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    Re: SMTP Authentication causes error

    The only thing I can say that is a problem, and I've seen it before, The IT setup a machine and he swore that it was the machine. I check the settings and he has the email address as @google.com, instead of @gmail.com. So I would verify again that you have a valid email and PW.

    And this was a guy that was in the business a long time.

  6. #6
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    Re: SMTP Authentication causes error

    Can Auth be set to STARTTLS? (req'd for port 587)

  7. #7
    Service Manager 2,500+ Posts tsbservice's Avatar
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    Re: SMTP Authentication causes error

    Try to remove Verify Server Certificate check box if any.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  8. #8
    Retired 10,000+ Posts slimslob's Avatar
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    Re: SMTP Authentication causes error

    From what I understand, Google has been trying to do away with support for "less secure device" since before the start of the year. You might try the following from Google support. Send email from a printer, scanner, or app - Google Workspace Admin Help

  9. #9
    Service Manager 2,500+ Posts
    SMTP Authentication causes error

    sandmanmac's Avatar
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    Re: SMTP Authentication causes error

    Quote Originally Posted by jonmdci View Post
    I'm sorry. I forgot to mention that before but less secure devices is enabled on the gmail account. I have set up dozens of copiers using gmail and that was always the only issue. This is something else. Thanks for replying tho.
    I NEVER enable less secure Apps...it's just not a good idea to reduce the level of security
    I enable 2FA, and create an App Password to use to authenticate the device(s).
    That's the ONLY way it will work once 2FA is enabled.
    Never had an issue.
    Last edited by sandmanmac; 07-23-2021 at 01:12 AM.

  10. #10
    IT Manager 10,000+ Posts bsm2's Avatar
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    Re: SMTP Authentication causes error

    Screen shot please

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