Hello,
Sorry, this is not possible. Snippetmaster is a website editing tool only.
However, since I happen to own a website hosting company, I am very familiar with all the different tools "out there" to manage mailing lists and subscribers.
The one I recommend is "dadamail", which is found here: http://mojo.skazat.com
It is excellent software, and allows you to have online mailing lists that you can send out newsletters, allow customers to subscribe/unsubscribe automatically, etc. Excellent stuff.
Not sure if you're interested, but I can have one of my technicians this for you for free if you are a customer of my hosting company. Here's some info about us.
ttp://www.etwebhosting.com
We have been in business since 2001 and now have about 3000 customers. All of our growth has been word-of-mouth referral, so we are definitely known for being a solid and reliable provider.
The majority of our customers are small businesses and website design owners. They come to us because they want a reliable and trusted provider, and they are tired of dealing with constant problems with their current hosts. You will find that we are a bit more expensive then the budget low-cost providers, but this is also why we are able to be more reliable and have better service.
With regard to transferring your websites, my tech staff are very experienced with transfers, and we can take care of website moves with either no downtime or very little (like minutes). My tech guys can evaluate everything and work with you to get the transfer done so it all goes smoothly.
Anyway -- here's a few links that will help:
http://www.etwebhosting.com/specials/snippetmaster.html
And our free transfer service:
http://www.etwebhosting.com/specials/free-transfer.html
And of course, we also offer a 30-day money-back guarantee so if for whatever reason you decide we just aren't right for you, then there is no financial lose.
Lastly if you would like to get a feel for the rapidity and quality of our helpdesk, just register for a helpdesk account and submit a few test tickets at any time: http://helpdesk.etwebhosting.com
Let me know if you have any questions about anything and I'll help right away. I'm 100% confident you'll be very happy with our web hosting services.
Cheers!