You have the SOA presented below in your Zone. Your secondary servers have not been able to contact your primary server to synchronize information. How long will the secondary servers attempt to conta

One day equals 86400 seconds, which does not match the expire field value of 604800 seconds in this SOA record.

One hour equals 3600 seconds, which corresponds to the refresh and retry fields in this record, not the expire field.

In the SOA record (200302028 3600 3600 604800 3600), the fields map to: serial, refresh, retry, expire, and minimum TTL respectively. The expire value is 604800 seconds, which equals exactly 7 days or one week. After this period without a successful zone transfer from the primary, secondary servers stop responding to queries for that zone.

One month is approximately 2592000 seconds, far exceeding the 604800-second expire value defined in this SOA record.