Avoid warning when using Word mail merge for email messages.

When you use Word or other software to do a mail merge, outlook gives a security prompt for each email you send, then you need to clcik "Allow" for every single mail.

.

To prevent the alerts, do this from Outlook:

Step 1)

Choose from menu Tools > Trust Center > Programmatic Access 

Step 2) 

Click "Never warn me .....",

Step 3)

Then click "OK".