opendkim-genkey(8) System Manager's Manual opendkim-genkey(8) (NAME) opendkim-genkey - DKIM (SYNOPSIS) opendkim-genkey [] (DESCRIPTION) opendkim-genkey () opendkim(8) () TXT DNS DKIM . ( ) ".private" TXT ".txt" . . (OPTIONS) -a (--append-domain) ( -d ) TXT . . -b bits (--bits=n) . DKIM . -d domain (--domain=string) . TXT . "example.com" . -D directory (--directory=path) . . --ed25519 ed25519. -h algorithms (--hash-algorithms=name[:name[...]]) . . --help . -n note (--note=string) . . -r (--restrict) . . -s selector (--selector=name) . "default" . -S (--[no]subdomains) . . -S --nosubdomains . -t (--[no]testmode) DKIM . -v (--verbose) (verbose). -V (--version) . (NOTES) openssl(8) . (VERSION) opendkim-genkey 2.11.0 OpenDKIM . (COPYRIGHT) (c) 2007, 2008 Sendmail, Inc. . . (c) 2009, 2011-2013 The Trusted Domain Project . . (SEE ALSO) opendkim(8), openssl(8) RFC6376 - DomainKeys Identified Mail The Trusted Domain Project opendkim-genkey(8)