If you're going to use Outlook to text message certain emails to your cell phone, it needs to be left on, and any previewing of messages by anti-spam software should be off for this purpose. In other words, anything that interrupts the receipt of the message and the application of the rule would stop the process. Most anti-spam software doesn't interfere with this, and some lets you set it to ignore emails that have certain characteristics.
The steps to set Outlook to check messages automatically are below.
1. Click on the Tools tab at the top.
2. Select Options.
3. Click on the Mail Setup tab.
4. Click on the Send/Receive tab.
5. Click the box next to "Schedule an automatic send/receive every.." box and set the minutes you want.
6. Click on Close and OK and you're finished.
