postar.cn.		10 IN SOA ns1.cyudun.net. mail.cyudun.net. (
				2          ; serial
				600        ; refresh (10 minutes)
				180        ; retry (3 minutes)
				1209600    ; expire (2 weeks)
				180        ; minimum (3 minutes)
				)

postar.cn.		30 IN TXT "v=spf1 include:spf.mail.qq.com ~all"
postar.cn.		30 IN TXT
"202105100000006al3xjc35vftuh807qd0asv6sln4u23nh36ppegfmatsllihz4"

postar.cn.		30 IN A	59.56.174.181

Mail exchangers:
postar.cn.		30 IN MX 10 mxbiz.vip.qq.com.

Name servers:
postar.cn.		30 IN NS ns2.cyudun.net.
postar.cn.		30 IN NS ns1.cyudun.net.