On pheenix, they didn't put only caught domains into auction. You can also put your domain into auction.
Let me copy-paste email here.
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I emailed them about selling of my domain in their auction.
Their reply " Thanks for your interest in selling domains on our platform.
If you would like to sell your domain names on Pheenix, these would be the steps:
1. You will need to become a Pheenix Verified Member.
As a Pheenix Verified member, you enjoy a trusted status with trusted features.
a. Ability to PUSH domain names to other Pheenix accounts immediately after you purchase a domain name.
b. Ability to Sell domain names on our platform.
In order to become a Pheenix Verified member, please setup 2factor on your account. You can do this from the 'Security > 2 Factor' tab. Once you have setup 2 factor and confirmed your pin, please let us know so we can verify.
2. Transfer In the domain names to Pheenix. The cost will be $8.88/domain for com/net paid by the SELLER.
a. You would need to unlock your domains and get the authcode.
b. Use our 'Sell > Transfer In' tab to transfer your domains into Pheenix. You can use the 'Transfer In Status' tab to monitor your Transfers.
3. Once they are in your account, you can immediately start selling them by going to 'Home > My Domains' tab and select Sell from 'Actions' dropdown or from the 'Home Bulk Operations' tab.
No approval necessary. Reserve Pricing is an option but not recommended if you want to sell quickly.
4. If a reserve price is suggested, we will have a 'Default' bidder place a proxy bid up to the reserve price.
5. The auctions are set for 8 days. If there are bids above the Reserve Price, it will immediately be seen in the 'Hot Auctions' section. If it is not sold, the system will start a new 8 day auction for it. Until you sell it or delist it.
6. Once the auction is over and payment is securely made by the BUYER, you will receive payment credited to your account most of the time within a few hours in most cases.
a. Our commission is 15% of the final bid price.
Hope this helps and have a great day! We hope to make a lot of money for you.
Warm Regards,
Your Friends at Pheenix