Hello, what is correct: this: subjectAltName = DNS:www.example.com, IP:127.0.0.1, IP:[2001:db8:123::1] or this: subjectAltName = DNS:www.example.com, IP:127.0.0.1, IP:2001:db8:123::1 or the question in other words: do I have to put an IPv6 address of the subjectAltName in []-brackets? Thanks, Walter -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3827 bytes Desc: S/MIME Cryptographic Signature URL: <http://mta.openssl.org/pipermail/openssl-users/attachments/20160924/aef819b1/attachment.bin>