certidude/certidude/templates/mail/certificate-signed.md

Signed {{ common_name }} ({{ serial_number }})

This is simply to notify that certificate {{ common_name }} with serial number {{ serial_number }} was signed{% if signer %} by {{ signer }}{% endif %}.

The certificate is valid from {{ certificate.not_valid_before }} until {{ certificate.not_valid_after }}.

Any existing certificates with the same common name were rejected by doing so and services making use of those certificates might become unavailable.