Attempt to find sendmail even when not on $PATH

command.go

@@ -80,8 +80,8 @@ type Mailer interface {
 }
 
 func findMailer() Mailer {
- if _, err := exec.LookPath("sendmail"); err == nil {
- return &SendMailMailer{}
+ if path, err := FindSendmail(); err == nil {
+ return &SendMailMailer{path}
  }
 
  return &SMTPMailer{}

sendmail.go

@@ -5,10 +5,22 @@ import (
  "os/exec"
 )
 
-type SendMailMailer struct{}
+func FindSendmail() (path string, err error) {
+ for _, option := range []string{"/usr/sbin/sendmail", "sendmail"} {
+ path, err = exec.LookPath(option)
+ if err == nil {
+ break
+ }
+ }
+ return
+}
+
+type SendMailMailer struct {
+ path string
+}
 
 func (m *SendMailMailer) Send(to []string, from string, body []byte) error {
- sendmail := exec.Command("sendmail", to...)
+ sendmail := exec.Command(m.path, to...)
  sendmail.Stdin = bytes.NewReader(body)
  return sendmail.Run()
 }