I'm not sure about the using your personal email bit. I know when I see yourname@startup.com that that's pretty intimate for the most part and is enough to con

I'm not sure about the using your personal email bit. I know when I see yourname@startup.com that that's pretty intimate for the most part and is enough to convince me that it's a real person. Also I would think you'd want to remain aligned with the company name and things pertaining to as well so using your personal email account may come across as a little odd for people. Other than that I agree that personal welcome emails are a small but powerful tool.