set email from address to SSHKEY_FROM_EMAIL

SSHKEY_FROM_EMAIL defaults to DEFAULT_FROM_EMAIL

django_sshkey/models.py

@@ -117,4 +117,8 @@ def send_email_add_key(sender, instance, **kwargs):
     key_fingerprint = instance.fingerprint,
     remote_addr = remote_addr or "<unknown>",
   )
-  instance.user.email_user(settings.SSHKEY_EMAIL_ADD_KEY_SUBJECT, body)
+  instance.user.email_user(
+    settings.SSHKEY_EMAIL_ADD_KEY_SUBJECT,
+    body,
+    settings.SSHKEY_FROM_EMAIL,
+  )

django_sshkey/settings.py

@@ -41,4 +41,4 @@ SSHKEY_EMAIL_ADD_KEY_BODY = getattr(settings, 'SSHKEY_EMAIL_ADD_KEY_BODY',
   "{key_fingerprint}\n\n"
   "If you believe this key was added in error, you should delete the key."
 )
-DEFAULT_FROM_EMAIL = settings.DEFAULT_FROM_EMAIL
+SSHKEY_FROM_EMAIL = getattr(settings, 'SSHKEY_FROM_EMAIL', settings.DEFAULT_FROM_EMAIL)