sendmail/SSL

About

The sendmail configuration parameters related to SSL seem to be:

• confCACERT_PATH
• confCACERT
• confSERVER_CERT
• confSERVER_KEY

All four must be defined in order for sendmail to offer STARTTLS connections. Unfortunately, the meaning of each parameter doesn't actually seem to be documented anywhere -- so any situation where there is no .pem file (e.g. a self-signed certificate) is unworkable without more information.

Example

define(`confCACERT_PATH',`/etc/apache2/certs')
define(`confCACERT',`/etc/apache2/certs/RapidSSL_CA_bundle.pem')
define(`confSERVER_CERT',`/etc/apache2/certs/vbz.net.crt')
define(`confSERVER_KEY',`/etc/apache2/certs/rizzo.key')

Links

official

• STARTTLS
• SMTP STARTTLS in sendmail/Secure Switch