diff --git a/src/main/java/com/postmarkapp/postmark/client/data/model/message/BaseMessage.java b/src/main/java/com/postmarkapp/postmark/client/data/model/message/BaseMessage.java
index 711cfc2..3feee71 100644
--- a/src/main/java/com/postmarkapp/postmark/client/data/model/message/BaseMessage.java
+++ b/src/main/java/com/postmarkapp/postmark/client/data/model/message/BaseMessage.java
@@ -367,6 +367,10 @@ private String convertRecipients(List<String> recipients) {
 
     private String convertRecipient(String name, String address) {
         StringBuilder recipientsString = new StringBuilder();
+        if (name != null) {
+            // Escape characters that otherwise cause parsing errors in the API
+            name = name.replace("\"", "\\\"");
+        }
         return recipientsString.append("\"").append(name).append("\"")
                 .append("<").append(address).append(">").toString();
     }
diff --git a/src/test/java/unit/data/MessageTest.java b/src/test/java/unit/data/MessageTest.java
index 82b716e..87542e2 100644
--- a/src/test/java/unit/data/MessageTest.java
+++ b/src/test/java/unit/data/MessageTest.java
@@ -183,6 +183,28 @@ void simpleMessageBcccRecipientsFullName() throws IOException {
 
     }
 
+    @Test
+    void recipientsWithQuotesAreEscapedProperly() {
+        Message message = new Message();
+        String nameWithQuote = "John \"Smith\"";
+        String email = "john@example.com";
+
+        Map<String, String> recipients = new HashMap<>();
+        recipients.put(nameWithQuote, email);
+
+        message.setTo(recipients);
+        assertEquals("\"John \\\"Smith\\\"\"<john@example.com>", message.getTo());
+
+        message.setCc(recipients);
+        assertEquals("\"John \\\"Smith\\\"\"<john@example.com>", message.getCc());
+
+        message.setBcc(recipients);
+        assertEquals("\"John \\\"Smith\\\"\"<john@example.com>", message.getBcc());
+
+        message.setFrom(nameWithQuote, email);
+        assertEquals("\"John \\\"Smith\\\"\"<john@example.com>", message.getFrom());
+    }
+
     @Test
     void attachmentException() throws IOException {
         Message message = new Message();