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+SOA Expire Value out of recommended range\r
+-----------------------------------------\r
+Error message:\r
+\r
+ ns1.cweiske.de reported Expire 1048576 : Expire is recommended to be between 1209600 and 2419200.\r
+\r
+RFC 1912 says:\r
+\r
+ 2.2 SOA records\r
+ Expire: 2-4 weeks are suggested values.\r
+\r
+Test::\r
+\r
+  $ dig @ns1.cweiske.de +short SOA cweiske.de\r
+  ns1.cweiske.de. hostmaster.cweiske.de. 1589436247 16384 2048 1048576 2560\r
+                                         |          |     |    |       +minimum\r
+                                         |          |     |    +expire\r
+                                         |          |     +retry\r
+                                         |          +refresh\r
+                                         +-serial\r
+\r
+Links:\r
+\r
+- https://en.wikipedia.org/wiki/SOA_record\r
+- https://tools.ietf.org/html/rfc1912#section-2.2
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