diff --git a/src/main/java/com/maxmind/minfraud/request/Email.java b/src/main/java/com/maxmind/minfraud/request/Email.java
index 7ad23384..c6159f42 100644
--- a/src/main/java/com/maxmind/minfraud/request/Email.java
+++ b/src/main/java/com/maxmind/minfraud/request/Email.java
@@ -141,6 +141,7 @@ public final class Email extends AbstractModel {
                 put("fastemailer.com", true);
                 put("fastest.cc", true);
                 put("fastimap.com", true);
+                put("fastmail.ca", true);
                 put("fastmail.cn", true);
                 put("fastmail.co.uk", true);
                 put("fastmail.com", true);
@@ -235,6 +236,7 @@ public final class Email extends AbstractModel {
         fastmailDomains = Collections.unmodifiableMap(fastmailDomainsMap);
 
         HashMap<String, Boolean> yahooDomainsMap = new HashMap<>() {{
+                put("myyahoo.com", true);
                 put("y7mail.com", true);
                 put("yahoo.at", true);
                 put("yahoo.be", true);
diff --git a/src/test/java/com/maxmind/minfraud/request/EmailTest.java b/src/test/java/com/maxmind/minfraud/request/EmailTest.java
index 3c4bab4b..820ae1b0 100644
--- a/src/test/java/com/maxmind/minfraud/request/EmailTest.java
+++ b/src/test/java/com/maxmind/minfraud/request/EmailTest.java
@@ -191,6 +191,10 @@ public void testNormalizing() throws NoSuchAlgorithmException {
         assertEquals(toMD5("user@fastmail.com"), e.address(), "MD5");
         assertEquals("user.fastmail.com", e.domain(), "domain");
 
+        e = new Builder(false).address("alias@user.fastmail.ca").hashAddress().build();
+        assertEquals(toMD5("user@fastmail.ca"), e.address(), "MD5");
+        assertEquals("user.fastmail.ca", e.domain(), "domain");
+
         e = new Builder(false).address("foo@bar.example.com").hashAddress().build();
         assertEquals(toMD5("foo@bar.example.com"), e.address(), "MD5");
         assertEquals("bar.example.com", e.domain(), "domain");
@@ -199,6 +203,10 @@ public void testNormalizing() throws NoSuchAlgorithmException {
         assertEquals(toMD5("foo@ymail.com"), e.address(), "MD5");
         assertEquals("ymail.com", e.domain(), "domain");
 
+        e = new Builder(false).address("test-alias@myyahoo.com").hashAddress().build();
+        assertEquals(toMD5("test@myyahoo.com"), e.address(), "MD5");
+        assertEquals("myyahoo.com", e.domain(), "domain");
+
         e = new Builder(false).address("foo@example.com.com").hashAddress().build();
         assertEquals(toMD5("foo@example.com"), e.address(), "MD5");
         assertEquals("example.com.com", e.domain(), "domain");