feat: add custom.exs to skip SMTP TLS certificate verification

asciinema/custom.exs

@@ -0,0 +1,17 @@
+import Config
+
+# Configure Swoosh SMTP adapter to skip TLS certificate verification
+# This is needed for IONOS SMTP server which has certificate key usage issues
+config :asciinema, Asciinema.Emails.Mailer,
+  adapter: Swoosh.Adapters.SMTP,
+  relay: System.get_env("SMTP_HOST"),
+  username: System.get_env("SMTP_USERNAME"),
+  password: System.get_env("SMTP_PASSWORD"),
+  port: System.get_env("SMTP_PORT") || 587,
+  tls: :always,
+  auth: :always,
+  ssl: false,
+  tls_options: [
+    verify: :verify_none,
+    versions: [:"tlsv1.2", :"tlsv1.3"]
+  ]