
<a name="conf.ref.dns_failures_to_purge"></a> 
## Name

dns_failures_to_purge — configure the maximum number of DNS lookups

## Synopsis

`dns_failures_to_purge = 10`

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## Description

After the specified number of failed DNS lookups, a message will be failed permanently. The default value is `10`.

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## Scope

`dns_failures_to_purge` is valid in the domain and global scopes.

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## See Also

[mx_failures_fallback_to_a](/momentum/4/config/ref-mx-failures-fallback-to-a)

dns failures to purge configure the maximum number of DNS lookups dns failures to purge 10 After the specified number of failed DNS lookups a message will be failed permanently The default value is 10 dns failures to purge is valid in the domain and global scopes mx failures fallback...

dns_failures_to_purge

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