Sedo is removing my non-resolving (but registered) domain names from it’s database

Sedo send me an email with the subject “Removal of domains with inactive DNS entries from Sedo” telling me that it will remove 486 domains from my account within 7 days unless I use active nameservers:

“To ensure that you are earning the most with your domains listed with Sedo, we have recently completed a series of domain name server (DNS) tests to detect inactive domains. These checks are designed to identify domains in your account that do not currently benefit from Sedo’s marketplace or domain parking.

In our latest DNS test, we noticed there are domains listed in your account with inactive DNS records. Domains with inactive DNS records have a lower chance of a sale and they are unable to profit from domainparking. A common reason for inactive DNS records is the expiration of a domain. If you still own these domains, you can prevent their removal from your account by simply adding name servers. If your registrar does not provide these automatically, or if you wish to benefit from Sedo’s domain parking program, you may use Sedo’s:

Primary Name S erver: NS1.SEDOPARKING.COM
Secondary Name Server: NS2.SEDOPARKING.COM

The list below includes the domains that you have listed with Sedo that have inactive DNS records. Please be sure to update the name servers for each of these domains through your registrar account by May/25/13, or they will be removed from Sedo’s database.”

Sure there are domains in there that I dropped or sold but there are also 100+ domains that are using myown nameservers and point to my own sales lander while some for one reason or another are not resolving. I don’t understand why Sedo wants to remove these domains from their database. There is no requirement for domains to have nameservers or that the domains resolve to a website. I can have 1000s domains listed atSedo with whatever nameservers I want and I can also have all these domains not resolve to any website. I can even have no nameservers at all and still list the domains for sale at Sedo. I know that I will have a lower chance of a sale but that is my choice and not Sedo’s.

When a domain name doesn’t resolve it can mean a number of things. Just one of these things is that thedomain has expired and dropped.

I am not sure why this is happening but I expect a reasonable explanation by Sedo. And that can only be “we don’t want your domains listed at Sedo because…” or “our automatic parser has a bug”. Of course this email came from a “do-not-reply” email address so I have to create a support ticket to resolve this.

They can remove my domains if they don’t want them, I don’t mind, but at least I expect an explanation and not Sedo’s buggy parser to remove them arbitrarily. I emailed Sedo and it took them 8 days to respond. Their response was practically that I should do their job. They want me to compile the list of the registereddomains and send them to them. I said no thanks. They can remove all my domains for all I care. 95% of them are using my lander and DomainNameSales.com.