Testing mailserver SSL using openssl!

openssl s_client -showcerts -connect mail.example.com:993

You may download openssl here:
https://wiki.openssl.org/index.php/Binaries

Was this answer helpful?

 Print this Article

Also Read

GEOTRUST RapidSSL installation in Plesk 12 (Certificate chain, intermediate certificates)

After validating the RapidSSL certificate request, GEOTRUST is delivering your RapidSSL...

How to install Certificate (*.crt) and CA-Certificate (CA-Bundle) ?

Your certificate should be inside a .ZIP archive and have the name like www_your_domain_com.crt...

Converting .CRT (X.509) to .P7B (PKCS#7) file format

Windows:    Instrunctions for Microsoft Windows (Symantec Knowlegde Base) Linux: openssl...

Configuring Apache with SNI support

https://wiki.apache.org/httpd/NameBasedSSLVHostsWithSNI

Manual submission to Certificate Transparency Log

If you want to do it manually, https://crt.sh/gen-add-chain Paste the cert, click the button,...