External Email Alerts - Best practice

Frequent Contributor

Dear All, 


We are trying to look at how we alert end users about receiving emails from external accounts and recently put in place an ability to add [FROM External) in the subject in any email originating from outside out organisation but it has caused issues with end users who are complaining about this. 


I was wondering if there is a better way to alert users. Happy to hear for other implementations. 



2 Replies

The usual implementation I've seen used is to prepend the message with a big red "EXTERNAL EMAIL"

Thanks @Vasil Michev,


We tried that but the html code that produced a yellow banner caused issues with the preview option in Outlook.