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Postfix: The Definitive Guide by Kyle D. Dent

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Name

ignore_mx_lookup_error

Possible values:

yes/no

Default:

no

Normally when Postfix gets no response from a nameserver for an MX lookup, it tries again after some period of time. You can cause immediate lookups of A records by enabling ignore_mx_lookup_error .

Example:

ignore_mx_lookup_error = no

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