tecos.de is a domain controlled by two nameservers at geneos.de. They are on different IP networks. Incoming mail for tecos.de is handled by one mailserver at tecos.de themselves. brrv.net, geneos.de, picard.de, swoopy.com, geneos.net and at least 68 other hosts share nameservers with this domain. www.tecos.de and mail.tecos.de are subdomains to this hostname. de is a domain controlled by six nameservers. All of them are on different IP networks.