Fix dictionary key check for smtp credentials

Author: iwilson-oa

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+#v25.3.1
+
+- Adjust email_destination TaskHandler to allow use of TLS/credentials to be optional, and set default port to 587
+- Adjust email_destination protocol schema to ensure that smtp_server and sender are set
+
 # v25.3.0
 
 - Add ignore_errors=True to problematic .gnupg removal

src/opentaskpy/remotehandlers/email.py

@@ -139,7 +139,7 @@ def push_files_from_worker(
                     smtp.starttls()
 
                 # Authenticate (if credentials specified)
-                if self.protocol_vars["credentials"]:
+                if "credentials" in self.protocol_vars:
                     smtp.login(
                         self.protocol_vars["credentials"]["username"],
                         self.protocol_vars["credentials"]["password"],