Windows 10: Outlook MEssage: Caution! This message was sent from outside your organization.

I keep getting this message on out-going emails from my business account. What is causing this and how do you fix? I didn't change anything.

:)

 

Windows 10 Email Caution message received by recipients

Sending emails using Outlook Office 2016 for Windows 10 recipients get a banner under the Subject line that states;
"CAUTION This email originated from outside of the organization. Do not click on the links or open file attachments unless you recognize the sender and know the content is safe".

I never had this problem before I moved to Windows 10 / Office 2016.

I don't see the caution message on my end unless the recipient replies, then I see that they received this caution message embedded in my email under the subject line.

How do I get rid of this message appearing when recipients open an email from me?

 

Windows 10 Email Caution message received by recipients

This is my personal email account that I use through Office 2016/Outlook. Emails are sent to colleagues at businesses. Note, these recipients never received this Caution message when I was using an earlier version of Windows or Outlook/Office.

 

outlook out going email messages

Messages that you send in Outlook will always first go to the Outbox folder. If they can be sent then they will get moved to the Sent Items folder.

As a first step to solve your problem I suggest you ask your Internet Service Provider for the various server names and numbers that apply to Outlook.

 

outlook out going email messages

Messages that you send in Outlook will always first go to the Outbox folder. If they can be sent then they will get moved to the Sent Items folder.

As a first step to solve your problem I suggest you ask your Internet Service Provider for the various server names and numbers that apply to Outlook.