FEATURE(nodns)
Omit DNS support from configuration file V8.6 through V8.8, removed V8.13
This feature was still offered through V8.12, but as of V8.9 it did nothing. Instead, beginning with V8.7 sendmail, you should either use the service-switch file (ServiceSwitchFile on page 1088) to control use of DNS or compile a sendmail without DNS support (NAMED_BIND on page 124). This feature was removed as of V8.13.
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