Make sure to set COSGO_DESTINATION and SENDGRID_KEY variables in heroku.

I added a sendgrid key for quick setup

Procfile

@@ -1 +1 @@
-web: cosgo -quiet -debug -port=$PORT
+web: cosgo -quiet -nolog -mailmode sendgrid -port=$PORT $FLAGS

boot.go

@@ -36,11 +36,24 @@ func quickSelfTest() (err error) {
  return errors.New("Fatal: environmental variable `MANDRILL_KEY` is Crucial.\n\n\t\tHint: export MANDRILL_KEY=123456789")
 
  }
+ if cosgoDestination == "" {
+ cosgoDestination = os.Getenv("COSGO_DESTINATION")
+ if cosgoDestination == "" {
+ return errors.New("Fatal: environmental variable `COSGO_DESTINATION` is Crucial.\n\n\t\tHint: export [email protected]")
+ }
+ }
  case smtpsendgrid:
  sendgridKey = os.Getenv("SENDGRID_KEY")
  if sendgridKey == "" {
- return errors.New("Fatal: environmental variable `SENDGRID_KEY` is Crucial.\n\n\t\tHint: export SENDGRID_KEY=123456789")
-
+ sendgridKey = "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"
+ log.Println("Warning: Set SENDGRID_KEY variable for production usage.")
+ // return errors.New("Fatal: environmental variable `SENDGRID_KEY` is Crucial.\n\n\t\tHint: export SENDGRID_KEY=123456789")
+ }
+ if cosgoDestination == "" {
+ cosgoDestination = os.Getenv("COSGO_DESTINATION")
+ if cosgoDestination == "" {
+ return errors.New("Fatal: environmental variable `COSGO_DESTINATION` is Crucial.\n\n\t\tHint: export [email protected]")
+ }
  }
  default:
  // No mailmode, going for mailbox.

handlers.go

@@ -204,7 +204,12 @@ func emailHandler(rw http.ResponseWriter, r *http.Request) {
  // Switch on mailmode and send it out! Success message may change/be customized in the future.
  switch *mailmode {
  case smtpmandrill:
- mandrillSender(rw, r, destination, query)
+ err = mandrillSender(rw, r, destination, query)
+ if err != nil {
+ log.Printf("FAILURE-contact: %s at %s\n\t%s", r.UserAgent(), r.RemoteAddr, query)
+ http.Redirect(rw, r, "/?status=0&r=5#contact ", http.StatusFound)
+ return
+ }
  log.Printf("SUCCESS-contact: %s at %s", r.UserAgent(), r.RemoteAddr)
  http.Redirect(rw, r, "/?status=1", http.StatusFound)
  return
@@ -218,7 +223,7 @@ func emailHandler(rw http.ResponseWriter, r *http.Request) {
  }
  log.Printf("SUCCESS-contact: %s at %s", r.UserAgent(), r.RemoteAddr)
  rw.Header().Add("status", "success")
- homeHandler(rw, r)
+ http.Redirect(rw, r, "/?status=1", http.StatusFound)
  return
  default:
  err = mbox.Save(form)

sendgrid.go

@@ -27,9 +27,9 @@ func sendgridSend(destinationEmail string, form *Form) (ok bool, msg string) {
  message.SetText(form.Message)
  r := sg.Send(message)
  if r == nil {
- return true, string("Sendgrid Email sent from" + destinationEmail)
+ return true, string("Sendgrid: Email sent to " + destinationEmail)
  }
- return false, string("Sendgrid Error: (" + destinationEmail + ")" + r.Error())
+ return false, string("Sendgrid Error:" + r.Error())
 }
 
 // sendgridSender always returns success for the visitor. This function needs some work.