expected = "user1@example.com -> user1@example.net\n" ++
"user2@example.com -> user1@example.org\n" ++
"user2@example.com -> user2@example.org\n" ++
expected = "user1@example.com -> user1@example.net\n" ++
"user2@example.com -> user1@example.org\n" ++
"user2@example.com -> user2@example.org\n" ++