Exchange online mail flow rules exception

Mark Dagley 1 Reputation point
2023-01-18T12:26:19.5133333+00:00

Hi, I have setup a mail flow rule to add a banner to emails for external email addresses to remind staff this is external and be careful about attachments and links.

this works fine however I would like to exclude emails sent to our support address as this goes into a 3rd party system that has it own security and rules but I have not managed to find a way of doing this.

at the moment I have a list of domains that are excluded from the rule and that works fine, I have also added an exception that says if the recipient contains any of these words then exclude and added the support address but that has not worked.

does anyone know if that is possible?

Microsoft Exchange Online
Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Mark Dagley 1 Reputation point
    2023-01-18T17:23:46.0766667+00:00

    here is the rule

    Rule description

    Apply this rule if Is received from 'Outside the organization

    Do the following Prepend the message with the disclaimer HTML for the disclaimer banner

    If the disclaimer can't be applied, attach the message to a new disclaimer message. and set message header 'External' with the value 'external'

    Except if

    Includes these words in the recipient's address 'support@ourdomainname.co.uk'

    or

    Includes these words in the sender's address 'Microsoft.com' or 'linkedin.com' ....

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  2. Aholic Liang-MSFT 13,741 Reputation points Microsoft Vendor
    2023-01-19T06:57:58.7+00:00

    Hi @Mark Dagley ，

    The “Includes these words” parameter need include exactly the specified word in the email address, and identify words with spaces.

    According to your needs, you can refer to the screenshot below to set exceptions：

    2023-1-19-1

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread

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  3. Mark Dagley 1 Reputation point
    2023-01-19T10:20:35.91+00:00

    unfortunately the address in question is a distribution group so it will not let me do that.

    the question now does that needs to be a distribution group as there is only one member, so all it does it redirect the email to a different address.

    is there a better way to forward emails sent to the support address to an external address?