The Mutt E-Mail Client : Reference : Configuration variables : use_ipv6
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## 6.3.262. use_ipv6

Type: boolean
Default: yes

When set, Mutt will look for IPv6 addresses of hosts it tries to contact. If this option is unset, Mutt will restrict itself to IPv4 addresses. Normally, the default should work.

The Mutt E-Mail Client : Reference : Configuration variables : use_ipv6
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