mkesmtpdcert - Create a secure SMTP test certificate

SamVarshavchik
           Author

       Secure ESMTP requires a valid, signed, X.509 certificate. The default location for the certificate file
       is /etc/courier/esmtpd.pem. The mkesmtpdcert generates a self-signed X.509 certificate, mainly for
       testing. For production use the X.509 certificate must be signed by a recognized certificate authority,
       in order for mail clients to accept the certificate.

       /etc/courier/esmtpd.pem must be owned by the courier user and have no group or world permissions. The
       mkesmtpdcert command will enforce this. To prevent an unfortunate accident, mkesmtpdcert will not work if
       /etc/courier/esmtpd.pem already exists.

       mkesmtpdcert requires OpenSSL to be installed.

       mkesmtpdcert - Create a secure SMTP test certificate

        1. courier(8)
           http://www.courier-mta.org/courier.html

Courier Mail Server                                01/22/2022                                    MKESMTPDCERT(8)

courier(8)[1].

/usr/sbin/mkesmtpdcert