ElasticEmail Plugin for WordPress by esideout reconfigures the wp_mail() function to send email using HTTPS (via Elasticemail) instead of SMTP and creates an options page to manage the settings.
SMTP email delivery by some hosting providers can be extremely slow. This plugin reconfigures the wp_mail() function to send email using HTTPS (via Elasticemail API) instead of SMTP and creates an options page that allows you to specify various options.
Settings Options:
Enable or Disable Plugin.
Elasticemail API username
Elasticemail assigned API Key
Elasticemail REST API URL
Your account channel variable(optional)
Downlaod plugin: http://wordpress.org/extend/plugins/elasticemailv1/