Docker: can't output certificate correctly

[kylegoetz]

If you run smtp4dev in a Docker container and then cat /smtp4dev/selfsigned-certificate.cer the output is malformed

[kylegoetz]

As a note to anyone who finds themselves struggling with this, one solution to this is to run from your host machine:

openssl s_client -starttls smtp 127.0.0.1:2525

and output will include the cert, well-formed, like this:

But it would be nice if the Docker container could output this correctly.

[Julien-Eyraud]

it is not malformed you can do:

openssl x509 -noout -text -in /smtp4dev/selfsigned-certificate.cer

You will get all the certificate info.

You are expecting the certificate to be in PEM format but I think it use DER instead.