diff --git a/src/keyserver_bot/hooks.py b/src/keyserver_bot/hooks.py
index 0120a70..846610d 100644
--- a/src/keyserver_bot/hooks.py
+++ b/src/keyserver_bot/hooks.py
@@ -16,13 +16,15 @@ def log_event(event):
 @hooks.on(events.NewMessage)
 def echo(event):
     snapshot = event.message_snapshot
-    email = snapshot
+    email = snapshot.text
     public_key = request_key_by_email(email)
     if not public_key:
         snapshot.chat.send_text("Sorry, I could not find a key for this user.")
+        return
 
     vcard = construct_vcard(email, public_key)
-    vcard_path = save_vcard(vcard)
+    vcard_path = f"/tmp/{email}.vcf"
+    save_vcard(vcard_path, vcard)
     snapshot.chat.send_file(vcard_path)
 
 
diff --git a/src/keyserver_bot/vcard.py b/src/keyserver_bot/vcard.py
index cd7f29c..8d2502d 100644
--- a/src/keyserver_bot/vcard.py
+++ b/src/keyserver_bot/vcard.py
@@ -1,16 +1,26 @@
 
 def construct_vcard(email: str, public_key: str) -> str:
+    """Construct a VCard 4.0 string with the email address and the public key
+
+    :param email: the email address of the requested contact
+    :param public_key: the public key of the requested contact
+    :return: the VCard string
     """
-
-    :param email:
-    :param public_key:
-    :return:
-    """
+    lines = [
+        "BEGIN:VCARD",
+        "VERSION:4.0",
+        f"EMAIL:{email}",
+        f"KEY:data:application/pgp-keys;base64,{public_key}",
+        "END:VCARD",
+    ]
+    return "\n".join(lines)
 
 
-def save_vcard(content: str) -> str:
-    """
+def save_vcard(path: str, content: str):
+    """Save the VCard string to the blob directory
 
+    :param path: the /tmp path of the .vcf file
     :param content: the VCard content
-    :return: the file path in the blob dir
     """
+    with open(path, "w+") as f:
+        f.write(content)
diff --git a/tests/test_vcard.py b/tests/test_vcard.py
new file mode 100644
index 0000000..0a7056d
--- /dev/null
+++ b/tests/test_vcard.py
@@ -0,0 +1,21 @@
+import pytest
+from keyserver_bot.vcard import construct_vcard
+
+
+@pytest.mark.parametrize(
+    ("email", "public_key", "vcard"),
+    [
+        (
+                "sdjif2mlij@protonmail.com",
+                "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",
+                "BEGIN:VCARD\nVERSION:4.0\nEMAIL:sdjif2mlij@protonmail.com\nKEY:data:application/pgp-keys;base64,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\nEND:VCARD",
+        ),
+        (
+                "missytake@systemli.org",
+                "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oePr",
+                "BEGIN:VCARD\nVERSION:4.0\nEMAIL:missytake@systemli.org\nKEY:data:application/pgp-keys;base64,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oePr\nEND:VCARD",
+        ),
+    ],
+)
+def test_construct_vcard(email, public_key, vcard):
+    assert vcard == construct_vcard(email, public_key)