Create SECURITY.md

Author: AlexanderEpolite

SECURITY.md

@@ -0,0 +1,16 @@
+# Security Policy
+
+## Supported Versions
+
+The current supported versions of TempMail are below:
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 2.x.x   | :white_check_mark: |
+| 1.x.x   | :x:                |
+
+If you are not on the current major version, it is recommended that you upgrade, as support for that version of the library may be dropped at any time by the server.
+
+## Reporting a Vulnerability
+
+You can report a vulnerability on GitHub Issues or by emailing [security@exploding.email](mailto:security@exploding.email).