Why am I seeing an alert in Outlook telling me there are external recipients on my message?

For some enterprise users, depending on admin configuration, Outlook will notify you about whether external recipients are present when you compose or reply to a message. This notification MailTip provides additional information when messaging, so that you feel confident about who will receive your mail. If you dismiss the MailTip, it will disappear, but the recipients will remain in the address well. This MailTip is for informational purposes only.

Shows a draft email with an alert about external recipients.

Need more help?

Expand your Office skills
Explore training
Get new features first
Join Office Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.