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Business Central forum

SMTP Configuration

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Posted on by 810

I setup and configured email on office 365 an would like to have dynamics 365 Financials use it. I clicked the "Apply Office 365 Server Settings" and entered my office 365 User ID and password.  When I test the email setup I get the error:

"The mail system returned the following error: "Mailbox unavailable. The server response was: 5.7.60 SMTP; Client does not have permissions to send as this sender"."

Is there some documentation on how to configure this?

  • Kenneth Winther Profile Picture
    15 on at
    RE: SMTP Configuration

    Nice :) But how do you fix 2? Is it simply not allowed to use a shared mailbox account in the SMTP-settings?

  • DMorales Profile Picture
    50 on at
    RE: SMTP Configuration

    I’m setting up SMTP clicking ‘apply office 365 settings’ button but whenever one user is set up the other ones get his/her email too on their NAV! Why is this happening and how do I fix this?

    Thanks,

    David

  • Verified answer
    Marco Mels Profile Picture
    on at
    RE: SMTP Configuration

    Hello,

    We do see this issue poppig up on a regular base and it is always one of the three root causes:

    1. smtp user defined in Dynamics NAV xx or Dynamics 365 BC is not licensed (with a subscription that does contain Exchange Online)

    2. smtp user defined in Dynamics NAV xx or Dynamics 365 BC is licensed but it is a shared mailbox

    3. users defined in Dynamics NAV xx or Dynamics 365 that do need to send mail as the smtp user lack permissions to send as  the smtp user defined in Dynamics NAV xx or Dynamics 365 BC

    To fix 3: edit all users in the Office 365 portal, Mailbox Settings, add the smtp user defined in Dynamics xx or Dynamics 365 BC to the Send As property

    In all the support tickets I did had to work on, it was one of the three.

    Hope it does help.

  • Saif Ehsan Profile Picture
    360 on at
    RE: SMTP Configuration

    Found that this works too; but did you find the cause/resolution as to why the other account doesn't work?

  • Saif Ehsan Profile Picture
    360 on at
    RE: SMTP Configuration

    Has anyone found the cause and resolution to this error? a number of customers are facing this issue; not all can create new user accounts to see if those accounts work with the email. Any ideas?

  • Verified answer
    Ezra Nielsen Profile Picture
    810 on at
    RE: SMTP Configuration

    I created a New Office user and setup email for it and it seems to be working with the new user.  

  • Chris Bulson Profile Picture
    on at
    RE: SMTP Configuration

    Yes, there is here - docs.microsoft.com/.../madeira-how-setup-email

    I don't think this is going to help you troubleshoot why Office 365 isn't allowing you to send SMTP email.  There is no setup involved, it should just work.

    Thanks,

    Chris

  • Ezra Nielsen Profile Picture
    810 on at
    RE: SMTP Configuration

    Yes I can sign in and send and receive email fine. Is there any documentation on setting this up?

  • Chris Bulson Profile Picture
    on at
    RE: SMTP Configuration

    Hello Ezra,

    Are you able to sign into your Mailbox in Office 365 and send email as the user you are using?  You could also check with Office 365 support to see if this is an error they are familiar with.  I don't know if SMTP in Office 365 requires a certain subscription level, etc...

    Thanks,

    Chris

  • Ezra Nielsen Profile Picture
    810 on at
    RE: SMTP Configuration

    I am still having trouble with this.  It appears to be authenticating but I but will not send as DM3PR13MB0651.namprd13.prod.outlook.com

    How do I configure Send As Permissions when the sender is not part of my domain in exchange?

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