openssl x509 -in filename.crt -noout -text

cd /etc/ssl/localcerts
openssl req -new -nodes -days 365 -keyout www.mydomain.com.key -out www.mydomain.com.csr

[me@myserver ~]# cd /etc/httpd/ssl
[me@myserver ssl]# ls
mydomain_com.ca-bundle  www.mydomain.com.crt  www.mydomain.com.key
mydomain_com.crt        www.mydomain.com.csr

SSLCertificateFile /etc/httpd/ssl/<crt file>.crt # The one that contains "MIIEODCC" (from the e-mail you received)
SSLCertificateKeyFile /etc/httpd/ssl/www.mydomain.com.key
SSLCACertificateFile /etc/httpd/ssl/mydomain_com.ca-bundle 

Failed to start apache :
Starting httpd: Syntax error on line 1050 of /etc/httpd/conf/httpd.conf:
Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configuration
[FAILED]

[me@myserver /]# apachectl configtest
Syntax error on line 1048 of /etc/httpd/conf/httpd.conf:
Invalid command 'SSLCertificateFile', perhaps misspelled or defined by a module not included in the server configuration
[me@myserver /]# 

yum install openssl
mkdir /etc/ssl/localcerts

[me@myserver /]# apachectl configtest
httpd: Syntax error on line 216 of /etc/httpd/conf/httpd.conf: Cannot load /etc/httpd/modules/mod_ssl.so into server: /etc/httpd/modules/mod_ssl.so: cannot open shared object file: No such file or directory

[me@myserver modules]# ls
libphp5.so              mod_cgid.so          mod_mime.so
mod_actions.so          mod_cgi.so           mod_negotiation.so
mod_alias.so            mod_dav_fs.so        mod_proxy_ajp.so
mod_asis.so             mod_dav.so           mod_proxy_balancer.so
mod_auth_basic.so       mod_dbd.so           mod_proxy_connect.so
mod_auth_digest.so      mod_deflate.so       mod_proxy_ftp.so
mod_authn_alias.so      mod_dir.so           mod_proxy_http.so
mod_authn_anon.so       mod_disk_cache.so    mod_proxy_scgi.so
mod_authn_dbd.so        mod_dumpio.so        mod_proxy.so
mod_authn_dbm.so        mod_env.so           mod_reqtimeout.so
mod_authn_default.so    mod_expires.so       mod_rewrite.so
mod_authn_file.so       mod_ext_filter.so    mod_setenvif.so
mod_authnz_ldap.so      mod_filter.so        mod_speling.so
mod_authz_dbm.so        mod_headers.so       mod_status.so
mod_authz_default.so    mod_ident.so         mod_substitute.so
mod_authz_groupfile.so  mod_include.so       mod_suexec.so
mod_authz_host.so       mod_info.so          mod_unique_id.so
mod_authz_owner.so      mod_ldap.so          mod_userdir.so
mod_authz_user.so       mod_log_config.so    mod_usertrack.so
mod_autoindex.so        mod_log_forensic.so  mod_version.so
mod_cache.so            mod_logio.so         mod_vhost_alias.so

[me@myserver modules]# yum install openssl
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
 * base: mirrors.coreix.net
 * epel: mirror01.th.ifl.net
 * extras: mirrors.coreix.net
 * updates: mirrors.coreix.net
66 packages excluded due to repository priority protections
Setting up Install Process
Package openssl-1.0.0-20.el6_2.5.i686 already installed and latest version
Nothing to do

Failed to start apache :
Starting httpd: [Tue Jun 26 10:19:41 2012] [warn] module ssl_module is already loaded, skipping
Apache/2.2.15 mod_ssl/2.2.15 (Pass Phrase Dialog)
Some of your private key files are encrypted for security reasons.
In order to read them you have to provide the pass phrases.

Server myserver:443 (RSA)
Enter pass phrase:Apache:mod_ssl:Error: Private key not found.
**Stopped
[FAILED]