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 tls_prune − prune expired sessions from the TLS sessions database  | 
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 tls_prune [ −C config-file ]  | 
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 Tls_prune is used to prune expired sessions from the TLS sessions database. The lifetime of a TLS session is determined by the tls_session_timeout configuration option. Tls_prune reads its configuration options out of the imapd.conf(5) file unless specified otherwise by -C.  | 
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 −C config-file  | 
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 Read configuration options from config-file.  | 
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 /etc/imapd.conf  | 
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 imapd.conf(5), master(8)  |