Workflow in Moss 2007-Sending email tips

This is what i learned today about Work flow in Moss 2007.In our project we have a requirement of sending email after a particular step in the work flow.

I tried writing down simple texts and look up in the email body.

To my surprise when the work flow executes and email is send to the assigned person,the mail goes to the junk folder of the mailbox.

But when i use HTML format in the mail body,the mail goes to the desired person mailbox instead of junk folder.So the conclusion is always use HTML format in the body of the email while working with Custom work flow in sharepoint designer 2007.