Hello,everyone! I’m a new comer to Let’s encrypt! And I like to ask how to give a certificate to my subdomain mail.chemsci.top. [Chrome gives a hint—“ERR_CERT_COMMON_NAME_INVALID” because I don’t give it a certificate ]This mail service was put on a the mail server(Aliyun) rather than on my person…

How can I give a certificate to my mail subdomain

system Closed June 7, 2017, 7:25pm 7

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