diff --git a/autoreply_editor/main.py b/autoreply_editor/main.py
index 06a676f..08bc9ba 100644
--- a/autoreply_editor/main.py
+++ b/autoreply_editor/main.py
@@ -5,7 +5,7 @@ import os
 import re
 import shutil
 from pathlib import Path
-from flask import request, render_template
+from flask import abort, request, render_template
 from flask_basicauth import BasicAuth
 from jinja2 import Template
 from autoreply_editor import app
@@ -49,9 +49,21 @@ def qmail_status(user):
         return False
 
 
+def check_user(user, output=False):
+    """Check if user exists"""
+    fulluser = [item for item in app.config.get("USERS") if item[1].split('@')[0] == user]
+    if not fulluser:
+        return False
+    else:
+        if output:
+            return fulluser[0]
+        else:
+            return True
+
+
 def get_messagefile(user):
     """Return message file of user, and create if necessary"""
-    filepath = f"message-{user.split('@')[0]}.txt"
+    filepath = f"message-{user}.txt"
     if not os.path.isfile(filepath):
         Path(filepath).touch()
 
@@ -61,25 +73,25 @@ def get_messagefile(user):
 def get_qmailfile(user):
     """Return qmail file of user, and create if necessary based on default qmail"""
     qmail_base = f"{str(Path.home())}/.qmail"
-    filepath = f"{qmail_base}-{user.split('@')[0]}"
+    filepath = f"{qmail_base}-{user}"
     if not os.path.isfile(filepath):
         shutil.copy(f"{qmail_base}-default", filepath)
 
     return filepath
 
 
-def get_filterfile(user, name):
+def get_filterfile(user):
     """Return .filter-autoreply file of user, and create if necessary"""
     filter_base = f"{str(Path.home())}/.filter-autoreply"
-    filepath = f"{filter_base}-{user.split('@')[0]}"
+    filepath = f"{filter_base}-{user}"
     if not os.path.isfile(filepath):
         with open(
             os.path.join(app.root_path, "templates/filterfile.j2"), encoding="utf-8"
         ) as template:
             filterconfig = Template(template.read()).render(
-                email=user,
-                user=user.split("@")[0],
-                name=name,
+                email=check_user(user, output=True)[1],
+                user=user,
+                name=check_user(user, output=True)[0],
                 messagefile=get_messagefile(user),
             )
 
@@ -94,7 +106,7 @@ def get_maildropline(user, active=True, regex=False):
     Define the line calling maildrop, with options to have the line disabled or
     in Regex format
     """
-    base = f"|maildrop {get_filterfile(user, 'FOOBAR')}"
+    base = f"|maildrop {get_filterfile(user)}"
     # If the filter should be inactive, we comment it
     if not active:
         base = f"#{base}"
@@ -108,26 +120,42 @@ def get_maildropline(user, active=True, regex=False):
 
 @app.route("/")
 def index():
-    """Index page"""
+    """Index page listing available users"""
+    return render_template(
+        "index.html",
+        users=app.config.get("USERS"),
+    )
+
+@app.route("/user/<user>")
+def user_status(user):
+    """Status for specific user"""
+    # Check if user is valid
+    if not check_user(user):
+        abort(404)
+
     with open(
-        get_messagefile(app.config.get("MAIL_USER")), "r", encoding="utf-8"
+        get_messagefile(user), "r", encoding="utf-8"
     ) as messagefile:
         message = messagefile.read()
 
     return render_template(
-        "index.html",
+        "user.html",
         message=message,
-        qmail_status=qmail_status(app.config.get("MAIL_USER")),
+        qmail_status=qmail_status(user),
     )
 
 
-@app.route("/", methods=["POST"])
-def index_post():
-    """Index page with POST request"""
+@app.route("/user/<user>", methods=["POST"])
+def user_update(user):
+    """Update user with POST request"""
+    # Check if user is valid
+    if not check_user(user):
+        abort(404)
+
     if request.form["action"] == "message":
         input_message = request.form["message"]
         with open(
-            get_messagefile(app.config.get("MAIL_USER")), "w", encoding="utf-8"
+            get_messagefile(user), "w", encoding="utf-8"
         ) as messagefile:
             messagefile.write(str(input_message))
             result = "Success: The autoreply message has been updated!"
@@ -135,18 +163,14 @@ def index_post():
     if request.form["action"] == "qmail":
         # define whether to set a comment
         if request.form["status"] == "on":
-            state_current = get_maildropline(
-                app.config.get("MAIL_USER"), active=False
-            )
-            state_desired = get_maildropline(app.config.get("MAIL_USER"))
+            state_current = get_maildropline(user, active=False)
+            state_desired = get_maildropline(user)
         else:
-            state_current = get_maildropline(app.config.get("MAIL_USER"))
-            state_desired = get_maildropline(
-                app.config.get("MAIL_USER"), active=False
-            )
+            state_current = get_maildropline(user)
+            state_desired = get_maildropline(user, active=False)
 
         with fileinput.FileInput(
-            get_qmailfile(app.config.get("MAIL_USER")),
+            get_qmailfile(user),
             inplace=True,
             backup=".bak",
         ) as qmailfile:
@@ -159,6 +183,11 @@ def index_post():
         result = f"Success: the autoreply is now {request.form['status']}."
 
     try:
-        return render_template("result.html", result=result)
+        return render_template("update.html", user=user, result=result)
     except UnboundLocalError:
-        return render_template("result.html", result="Something went terribly wrong!")
+        return render_template("update.html", user=user, result="Something went terribly wrong!")
+
+
+@app.errorhandler(404)
+def page_not_found(e):
+    return render_template('error.html', error=e), 404
diff --git a/autoreply_editor/templates/result.html b/autoreply_editor/templates/error.html
similarity index 87%
rename from autoreply_editor/templates/result.html
rename to autoreply_editor/templates/error.html
index 84624af..7cc79fc 100644
--- a/autoreply_editor/templates/result.html
+++ b/autoreply_editor/templates/error.html
@@ -6,7 +6,7 @@
 <body>
   <h1>Autoreply Editor</h1>
 
-  <p>{{ result }}</p>
+  <p>{{ error }}</p>
 
   <p><a href="/">Go back</a></p>
 
diff --git a/autoreply_editor/templates/index.html b/autoreply_editor/templates/index.html
index 2009ad7..212ab0f 100644
--- a/autoreply_editor/templates/index.html
+++ b/autoreply_editor/templates/index.html
@@ -6,33 +6,11 @@
 <body>
   <h1>Autoreply Editor</h1>
 
-  <h2>Toggle autoreply message</h2>
+  <ul>
+    {% for user in users %}
+    <li><a href="/user/{{ user[1].split('@')[0] }}">{{ user[0] }} {{"<"}}{{ user[1] }}{{">"}}</a></li>
+    {% endfor %}
+  </ul>
 
-  <p>
-    The autoreply is <strong>{%if qmail_status%}active{%else%}inactive{%endif%}</strong>
-  </p>
-  <form method="POST">
-    <input type="hidden" name="action" value="qmail" />
-    {% if qmail_status %}
-    <input type="hidden" name="status" value="off" />
-    <input type="submit" value="Deactivate">
-    {% else %}
-    <input type="hidden" name="status" value="on" />
-    <input type="submit" value="Activate">
-    {% endif %}
-  </form>
-
-  <h2>Change autoreply message</h2>
-
-  <p>
-    Below you can see the current text of your autoreply message. You
-    can edit and update it directly below:
-  </p>
-  <form method="POST">
-    <input type="hidden" name="action" value="message" />
-    <textarea name="message" cols="120" rows="20">{{ message }}</textarea>
-    <br />
-    <input type="submit" value="Update">
-  </form>
 </body>
 </html>
diff --git a/autoreply_editor/templates/update.html b/autoreply_editor/templates/update.html
new file mode 100644
index 0000000..1f20dca
--- /dev/null
+++ b/autoreply_editor/templates/update.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<head>
+  <title>Autoreply Editor</title>
+</head>
+
+<body>
+  <h1>Autoreply Editor</h1>
+
+  <p>{{ result }}</p>
+
+  <p><a href="/user/{{ user }}">Go back</a></p>
+
+</body>
+</html>
diff --git a/autoreply_editor/templates/user.html b/autoreply_editor/templates/user.html
new file mode 100644
index 0000000..2009ad7
--- /dev/null
+++ b/autoreply_editor/templates/user.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<head>
+  <title>Autoreply Editor</title>
+</head>
+
+<body>
+  <h1>Autoreply Editor</h1>
+
+  <h2>Toggle autoreply message</h2>
+
+  <p>
+    The autoreply is <strong>{%if qmail_status%}active{%else%}inactive{%endif%}</strong>
+  </p>
+  <form method="POST">
+    <input type="hidden" name="action" value="qmail" />
+    {% if qmail_status %}
+    <input type="hidden" name="status" value="off" />
+    <input type="submit" value="Deactivate">
+    {% else %}
+    <input type="hidden" name="status" value="on" />
+    <input type="submit" value="Activate">
+    {% endif %}
+  </form>
+
+  <h2>Change autoreply message</h2>
+
+  <p>
+    Below you can see the current text of your autoreply message. You
+    can edit and update it directly below:
+  </p>
+  <form method="POST">
+    <input type="hidden" name="action" value="message" />
+    <textarea name="message" cols="120" rows="20">{{ message }}</textarea>
+    <br />
+    <input type="submit" value="Update">
+  </form>
+</body>
+</html>