Monthly Archives: August 2015

SSL not working: certificate verify failed (18)

If your ssmtp persistently returns a “SSL not working: certificate verify failed (18)” in logs, and you do have “TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt” in your conf, and you do use a self-signed certificate, try adding the certificate in “/usr/share/pki/ca-trust-source/anchors/” (Fedora 22 directory, may vary for other distros) and then re-try the mailer agian.