How to reset security warnings in Outlook (related to mail - Microsoft Community

when ran mail merge word, got security warning below:

"a script attempting send message. scripts can contain viruses or otherwise harmful computer, it's important verify script created trustworthy source. want send message?"

at time, didn't want mails go out, clicked "don't show message again" , hit cancel. when mail merge, mails go outbox , never send, , no longer see security warning. i'm pretty sure it's permanently blocking sending. i've searched , searched , cannot figure out how reset warning comes again. 

thank , ideas!

i figured out!! creating new profile wasn't sufficient, had follow following instructions. prompted me again, clicked send, , voila! mail merge works. posting other people can fix quicker :-)

previous settings outlook left behind had deleted following simple steps:

1. close outlook
2. open terminal (click spotlight search glass in top right corner , type terminal)
3. type: defaults delete com.microsoft.outlook (to delete old preferences)
4. type: killall cfprefsd (to kill cached prefs)
5. launch outlook

now if answers.microsoft.com allow me mark own reply answer... :-(

Office / Outlook / Mac / Office 2016 for Mac