Ask YC: Email marketing tool

I am looking for a low-cost email marketing tool that I can use to start sending newsletters and messages to potential customers. I want to find a reliable provider that has high deliverability, but that isn't too pricey. I'm a start-up, after all.

I considered building this myself, but I'm guessing that there are lots of good products already on the market. Can anyone suggest something that they've used?

WebPower ( http://www.webpower.nl/ ) runs opt-in mailing lists with quick import options and an AJAX interface. The client list ( http://www.webpower.nl/wp.php/webpower/klanten/ ) is quite impressive.

Fair question! I won't be mailing anyone that doesn't give me permission...my application will require people to login and give me permission to email them...after I do that, they may or may not become customers. But I won't message anyone that doesn't opt-in!

I was in the same position about two years ago and, due to the high cost of services like ConstantContact/CampaignMonitor, I voted to build my own. After two years, I had built my list up to about 10k users and my web host finally came to me and asked me to move it off to another app/site/VPS.

It took me about a day to implement, I guess, and I think it saved me probably $2500-$5000 even when I consider the time value of my development time.

I advise that, if you can charge yourself less than $150/hr for your time and you will be sending to a small amount of ppl initially, build it yourself.

How come there isn't an YC company doing pretty and easy to create and manage email marketing?