Add SMTP_HELLO_NAME to let operators set the EHLO/HELO identity

Google Workspace SMTP relay (smtp-relay.gmail.com) rejects generic
EHLO identifiers such as "localhost", which is Go net/smtp's default.
Operators can now set SMTP_HELLO_NAME to a valid hostname so that
c.Hello() is called before StartTLS, satisfying strict relay policies.

Fixes https://github.com/getprobo/probo/issues/1284

Signed-off-by: Bryan Frimin <bryan@probo.com>

contrib/helm/charts/probo/templates/deployment.yaml

@@ -225,6 +225,10 @@ spec:
             {{- end }}
             - name: SMTP_TLS_REQUIRED
               value: {{ .Values.probo.mailer.smtp.tlsRequired | quote }}
+            {{- if .Values.probo.mailer.smtp.helloName }}
+            - name: SMTP_HELLO_NAME
+              value: {{ .Values.probo.mailer.smtp.helloName | quote }}
+            {{- end }}
             # OpenAI Integration
             {{- if .Values.probo.openai.apiKey }}
             - name: OPENAI_API_KEY

contrib/helm/charts/probo/values-production.yaml.example

@@ -157,6 +157,9 @@ probo:
       user: "apikey"
       password: "CHANGE_ME_SMTP_PASSWORD"
       tlsRequired: true
+      # Set to your server's hostname when the relay requires a specific EHLO/HELO
+      # identity (e.g. Google Workspace smtp-relay.gmail.com rejects "localhost").
+      # helloName: "mail.example.com"
 
   # OpenAI integration for AI features (optional)
   openai:

contrib/helm/charts/probo/values.yaml

@@ -251,11 +251,13 @@ probo:
       user: ""
       password: ""
       tlsRequired: true
+      helloName: ""
 #    smtp:
 #      addr: "localhost:1025"
 #      user: ""
 #      password: ""
 #      tlsRequired: false
+#      helloName: ""
 
   # OpenAI integration (optional)
   openai: