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5.1.3   Purchase…

When you launch SpamSieve for the first time, the Purchase window will automatically open. You can also open it by choosing Purchase… from the SpamSieve menu.

Trial/Demo Period

SpamSieve has a free trial. During the trial period, SpamSieve is fully functional; the only difference in behavior is that it will periodically remind you that you are using the trial. To use SpamSieve in trial mode, you can simply close the Purchase window.

The trial period lasts for 30 days. (After the 30 days, if you haven’t had a chance to use SpamSieve very much, you can continue using it for up to a total of 7 launches.) To use SpamSieve beyond the trial period, you must purchase it. This entitles you to free updates and support.


Click the Purchase Online button to enter the online store.

After Purchasing

Soon after paying, you’ll receive an e-mail with your serial number. Enter the name and serial number from the e-mail into the Purchase window and click Personalize. You do not have to “install the purchased version”; rather, SpamSieve will then know that you have purchased and you can keep using it as before—with all the preferences that you had set and data that you had entered.

Reinstalling a Previous Purchase

If you need to re-install SpamSieve, you can simply re-enter your Serial Name and Serial Number and click Personalize; there’s no need to purchase again.

If you cannot find your serial number, click the Look Up My Serial Number button. This will open a form where you can enter your e-mail address and look up your order information.

License Information

A license for SpamSieve is good for one person or one computer. This means that you can use it on your desktop Mac and your laptop, or you and your family can use it (in separate user accounts) on a shared Mac. If there are multiple users on multiple Macs, you should purchase multiple licenses. Discounts for packs of 2, 10, and 50 licenses are available above. A family (all living in the same household) can share a 2-user license. If you already have a single license, you can upgrade to a family license. To do this, e-mail your old order number to, and we’ll send you a coupon code.

Upgrade Policy

All maintenance releases (1.0.1, 1.0.2, 1.6.1, etc.) and minor feature updates (1.1, 1.2, 1.5, etc.) are free. We have a track record of many such updates, and they have included significant new features. Major upgrades (2.0, 3.0) are free if you purchased the previous version within the last six months. If you purchased longer ago than that, you get a discount. (Note: The upgrade discounts are only available if you originally purchased direct from C-Command, since the Mac App Store does not support upgrades.)

Mac App Store

The Purchase… menu command is not present if you purchased via the Mac App Store. In that case, there is no trial period, and licensing is based on your iTunes account rather than the number of people or computers.

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