postfix/smtpd[5347]: warning: 10.64.217.190: hostname test.sales.example.com verification failed: Name or service not known
Issue
- What does the following log mean in maillog?
postfix/smtpd[5347]: warning: 10.64.217.190: hostname test.sales.example.com verification failed: Name or service not known
Environment
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- postfix
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