Why are my emails showing up as attachments?

[Root, Paul T]

I think the Office 365 and yahoo and probably some others, send out mail that the mailing list has to display as an attachment.

-----Original Message-----
From: Ribeiro, Glauber <glauber.ribeiro at experian.com>
Sent: Friday, March 20, 2020 4:24 PM
To: xymon at xymon.com
Subject: Why are my emails showing up as attachments?

Why are my emails to the list showing up as attachments? This is happening even if I send plain-text emails.

Unfortunately, we use Office 365. Is there any setting I can tweak to fix this?

Thanks,

g
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