* [FEATURE] SMTPS Support
- Added port_tls option to enable SMTPS, off by default.
* Remove configuration variable for SMTPS
Instead we enable SMTPS on port 465 only. The reason for this is so we don't require an additional configuration variable.
* Add SMTPS warning and updated docs
* Adjust SMTPS warning
- Adjust AUTH LOGIN functionality to be closer to AUTH PLAIN
- Removed: secure (notifier smtp conf) boolean string
- Added: disable_verify_cert (notifier smtp conf) boolean
- disables X509 validation of certificates
- Added: disable_require_tls (notifier smtp conf) boolean
- allows emails to be sent over plain text (for non-authenticated only)
- Added: trusted_cert (notifier smtp conf) string (path)
- allows specifying the path of a PEM format cert to add to trusted cert pool
- Make SMTP notifier return errors on connection over plain text
- Make SMTP notifier return errors on TLS connection with invalid certs
- Implemented various debug logging for the SMTP notifier
- Implemented explicit SMTP closes on errors (previously left con open)
- Split SMTPNotifier Send func to seperate funcs for:
- writing future test suites and startup checks more easily
- organization and readability
- Add details of changes to docs/security.yml
- Adjust config.yml's (template and test) for the changes
Running this suite is the first advice given by the
bootstrap script to help the user move forward.
This commit also updates the documentation to reflect
changes introduced by the Go rewrite.
