diff --git a/gitea/gitea.py b/gitea/gitea.py
index 99b0ed5..4bce164 100644
--- a/gitea/gitea.py
+++ b/gitea/gitea.py
@@ -184,7 +184,7 @@ class Repository(GiteaApiObject):
 
     def get_issues_state(self, state) -> List[GiteaApiObject]:
         """Get issues of state Issue.open or Issue.closed of a repository."""
-        assert state in [Issue.open, Issue.closed]
+        assert state in [Issue.OPENED, Issue.CLOSED]
         index = 1
         issues = []
         while True:
@@ -587,7 +587,7 @@ class Gitea:
     def get_user_by_email(self, email: str) -> User:
         users = self.get_users()
         for user in users:
-            if user.email == email:
+            if user.email == email or email in user.emails:
                 return user
         return None
 
diff --git a/test_api.py b/test_api.py
index ae8b61d..272f36b 100644
--- a/test_api.py
+++ b/test_api.py
@@ -119,12 +119,18 @@ def test_create_issue():
     assert issue.body == "Body text with this issue"
 
 def test_delete_repo_userowned():
-    org = User.request(gitea, test_user)
-    repo = Repository.request(gitea, org.username, test_repo)
+    user = User.request(gitea, test_user)
+    repo = Repository.request(gitea, user.username, test_repo)
     repo.delete()
     with pytest.raises(NotFoundException) as e:
         Repository.request(gitea, test_user, test_repo)
 
+def test_secundary_email():
+    SECONDARYMAIL = "secondarytest@test.org" # set up with real email
+    sec_user = gitea.get_user_by_email(SECONDARYMAIL)
+    assert SECONDARYMAIL in sec_user.emails
+    assert sec_user.username == "test"
+
 def test_delete_repo_orgowned():
     org = Organization.request(gitea, test_org)
     repo = Repository.request(gitea, org.username, test_repo)