Change log for SENDMAIL

Date Changes
2023-09-20 Enhancement:
- Added condition to "from" parameter if the value is not in email format, then append "@local".
2022-05-06 Enhancement-Mapped following fields:
tls_verify to security_result.description.
tls_version to network.tls.version.
cipher to network.tls.cipher.
size to network.sent_bytes.
eventid to metadata.product_log_id.