domainSummarywww.rd.bt.com and www2.rd.bt.com are subdomains to this hostname. bt.com is a domain controlled by four nameservers at bt.com themselves. All of them are on the same IP network. Incoming mail for bt.com is handled by five mailservers at intersmtp.com. All of them are on the same IP network. bt.com has one IP number.DNS Records
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