Pairing crossbar Edge node with master

Hi, what is the right way to pair the edge node with master node
I tried the following from Using Docker — Crossbar.io FX 21.3.2.dev1 documentation

  • I ran crossbar shell pair node .test/nodes/node1/key.pub mrealm1 node1 but it asked me to enter email address and I didn’t receive any email with the auth code.
  • How can I get these auth codes locally? Am I missing anything?