Mail Flow - External Message Warning HELP

Anonymous
2019-02-11T17:13:35+00:00

Hello!

I'm trying to setup a mail flow rule for external email messages from non-organization addresses. I have it setup great, however I have it coded so that it displays the yellow background, red boarder etc and it displays perfect in a sample code viewer. However, when I add it to my rule and then send a test message to my email from outside the org, it doesn't display any of these colors. HELP?? I have included my code below. I'm using 0365

<div style="background-color:#FFEB9C; width:100%; border-style: solid; border-color:#9C6500; border-width:1pt; padding:2pt; font-size:10pt; line-height:12pt; font-family:'Calibri'; color:Black; text-align: left;"><span style="color:#9C6500"; font-weight:bold;>CAUTION:</span> This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.</div><br>

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Anonymous
2019-02-11T19:26:52+00:00

Hi BH33,

Thanks for provide the details in your post. About your question, please kindly check following steps to see if it can help you fix this issue:

  1. In Exchange Admin Center, go to mail flow > rules and then click "+" to create a new rule.
  2. Then set the new rule like below picture:

Note: in step 4, please enter following code: 

<p><div style="background-color:#FFEB9C; width:100%; border-style: solid; border-color:#9C6500; border-width:1pt; padding:2pt; font-size:10pt; line-height:12pt; font-family:'Calibri'; color:Black; text-align: left;"><span style="color:#9C6500"; font-weight:bold;>CAUTION:</span> This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.</div><br></p>

I have tested above rule on my side and I can successfully show the warning message(see below picture), if you have any problems when doing so, please feel free to post back and provide us a screenshoot of the detailed information about the rule you created for analysis.

Regards,

Jennifer

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  1. Anonymous
    2021-07-14T20:46:39+00:00

    Thank you, this is helpful; how do I set this up to only display for 1st-time senders? All emails from the sender after this should not display this message banner?

    I don’t know that you can, with this particular method at least. They will always be “external” therefore the rule will continue to behave as it should— marking external emails as external.

    I don’t know if I ever reported back, but this still only works for me on the web version and iOS app version. Other clients, including Outlook Desktop on Windows (Office365/2019 nor 2016) do not display that special external tag.

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  2. Anonymous
    2021-08-06T20:41:55+00:00

    Does anyone have any answer/fix to this by chance? Dealing with the same issue.

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  3. Anonymous
    2021-08-25T15:10:07+00:00

    Hello!

    I'm trying to setup a mail flow rule for external email messages from non-organization addresses. I have it setup great, however I have it coded so that it displays the yellow background, red boarder etc and it displays perfect in a sample code viewer. However, when I add it to my rule and then send a test message to my email from outside the org, it doesn't display any of these colors. HELP?? I have included my code below. I'm using 0365

    <div style="background-color:#FFEB9C; width:100%; border-style: solid; border-color:#9C6500; border-width:1pt; padding:2pt; font-size:10pt; line-height:12pt; font-family:'Calibri'; color:Black; text-align: left;"><span style="color:#9C6500"; font-weight:bold;>CAUTION:</span> This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.</div><br>

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  4. Anonymous
    2021-08-25T16:09:27+00:00

    See J. Neal's and my posts regarding HTML formatting.

    The first thing to rule out is to make sure the test messages you are sending yourself are formatted as HTML. Otherwise they are just text and don't have the ability to reflect the HTML you are using to make the message pretty. If your mail client doesn't have this capability (turning HTML on/off), make sure and send something that contains some significant formatting, maybe throw in some pictures or something. hyperlink something, make something green, etc. Might should do this in addition to checking the "format" option anyways, just in case outlook gets clever on you and sees no formatting and decides on text for you.

    Image

    Example with my setup and receiving external "TEXT ONLY" emails:

    Example of a message received with HTML formatting in the message:

    (I have it set up so that simple external messages contain the yellow warning and are at the bottom of the message so they do not preempt the header/message preview lines, as to not annoy employees but still CMA. Red message IS at the top of the message and DOES preempt the preview lines, because that one is only set to show up if the sender tries to spoof one of our employee's names.)

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