Add-on for sending email with SMIME

Splunk Technology Add-on for sending S/MIME signed and/or encrypted email from: - a custom SPL command (`smimemail`) - a custom alert action (**Send S/MIME Email**) compatible with Splunk ES Adaptive Response It includes UI pages for SMTP/OAuth2 setup and certificate management. Capabilities S/MIME signing S/MIME encryption Recipient cert validation SMTP transport , Microsoft Graph transport Certificate monitoring endpoint