The Mutt E-Mail Client : Reference : Configuration variables : smime_default_key
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## 6.3.187. smime_default_key

Type: string
Default: ""

This is the default key-pair to use for signing. This must be set to the keyid (the hash-value that OpenSSL generates) to work properly (S/MIME only)

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