xn----itbbumnfefhg2b.xn--p1ai. 30 IN SOA ns1.ht-systems.ru. noc.ht-systems.ru. (
				3512053620 ; serial
				3600       ; refresh (1 hour)
				300        ; retry (5 minutes)
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Mail exchangers:
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xn----itbbumnfefhg2b.xn--p1ai. 30 IN NS	ns1.ht-systems.ru.