Info-Mac

I'm looking for software similar to this: http://www.sendblaster.com/ but for Mac.

Free is of course ideal, or a one-time payment.

EDIT: I forgot to put in that this list is huge: 15,000 people and the list is only going to get bigger.

How about MaxBulk Mailer?

About MaxBulk Mailer
A full-featured and easy-to-use bulk mailer and mail-merge software for Macintosh that allows you to send out customized press releases, prices lists, newsletters, and any kind of text or HTML documents to your customers or contacts.

It's listed on Apple's own software directory, so it's OK to assume that it's safe and legit. It's also shareware.

EDIT: I also just noticed that an older version of it is available right here on Info-Mac.

That looks very promising.

I have no experience with bulk email software, but 15,000+ sounds like you should be looking at commercial-grade software rather than free.

I don't want to be presumptuous, but are you currently a user of SendBlaster that is considering switching to Mac? If so, you might consider running your current copy of SendBlaster (or any other PC software you feel you need) inside a virtualized Windows XP environment using Sun's VirtualBox software, which is a completely free download, and works very well. All you need to provide is a copy of Windows.

I went ahead and installed SendBlaster on my Windows XP virtual environment to assure you that it works fine on a Mac. Attached is a screenshot:

Thanks very much Dan. I don't currently use Sendblaster but now that I know it can be eulated, I might. The organization I'm with has a mix of Windows boxes and Macs, so the more we can standardize things the better.

You are correct, the best option is always to try and find Mac-native applications where possible.

Veteropinguis wrote:The organization I'm with has a mix of Windows boxes and Macs, so the more we can standardize things the better.

Which is precisely why more and more businesses and organizations are moving to the Macintosh platform. As you can see above, you can use the wide selection of well-designed, integrated and easy to use Mac-only software such as iWork and iLife. Additionally, in the rare occasion that your needs might require, you can also run your Windows or Linux software. In fact you can run all three simultaneously from one Mac. It's all legal and requires no hacks or trickery.

Below you can see my desktop as I create an advertisement in Apple Pages, check mail in Apple Mail, update my personal web portfolio in Apple iWeb, and run Windows XP and Ubuntu Linux 9 in separate virtual environments using Sun VirtualBox. Believe it or not, all of this runs smoothly and reliably.
One of Mac OS X's biggest virtues over other operating systems is the smooth and fluid way it allows you to multitask. Why, just take Exposé all windows for example:
And, back to VirtualBox... if running your other operating systems inside Mac OS X windows doesn't appeal to you, there is always fullscreen mode. And even then, it's still super easy to switch between all three:
So hopefully this helps reassure you that standardizing your entire organization on Macs is the smart decision to make.

In addition to MaxBulk, you might also look at Direct Mail (http://ethreesoftware.com/directmail/).