DNS errors in Messaging Gateway messages log
Article ID: 214584
Updated On:
Products
Messaging Gateway
Issue/Introduction
Antispam rule updates are intermittently delayed and the Messaging Gateway (SMG) messages log shows multiple "RCODE REFUSED" errors when querying one or more of the configured name servers.
messages log
2021 Apr 21 02:18:46 (info) named: [6258] error (unexpected RCODE REFUSED) resolving 'aztec.brightmail.com/AAAA/IN': [10.0.0.10]#53
2021 Apr 21 02:18:46 (info) named: [6258] error (unexpected RCODE REFUSED) resolving 'aztec.brightmail.com/AAAA/IN': [10.0.0.10]#53
2021 Apr 21 02:18:55 (info) named: [6258] error (unexpected RCODE REFUSED) resolving 'aztec.brightmail.com/AAAA/IN': [10.0.0.10]#53
2021 Apr 21 02:18:55 (info) named: [6258] error (unexpected RCODE REFUSED) resolving 'aztec.brightmail.com/AAAA/IN': [10.0.0.10]#53
Cause
The configured name server is refusing to process the DNS query from SMG
Environment
Component : DNS
Resolution
The DNS server listed in the error message should be investigated to determine whether it is rate limiting DNS queries from SMG or otherwise experiencing resource issues which prevent it from providing DNS query responses to Messaging Gateway.
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