Pro tip: Don't use a generic email address to promote your business
How often do you see a proposal that goes like this:
Hey there,
At XYZ we do awesome stuff around something. Check us out at xyz.com!
Thanks,
xyz@gmail.com
Really? It only takes 10 minutes to set up email on your own domain. If you really don't have the time to do that, then I'm not too sure I want to give you money to do things for me.