diff --git a/src/main/groovy/io/kamax/mxisd/api/ThreePidType.groovy b/src/main/groovy/io/kamax/mxisd/api/ThreePidType.groovy
deleted file mode 100644
index 29ef36d..0000000
--- a/src/main/groovy/io/kamax/mxisd/api/ThreePidType.groovy
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * mxisd - Matrix Identity Server Daemon
- * Copyright (C) 2017 Maxime Dor
- *
- * https://max.kamax.io/
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package io.kamax.mxisd.api
-
-enum ThreePidType {
-
-    email,
-    msisdn,
-
-}
diff --git a/src/main/groovy/io/kamax/mxisd/config/LdapConfig.groovy b/src/main/groovy/io/kamax/mxisd/config/LdapConfig.groovy
index f9f2882..db2495e 100644
--- a/src/main/groovy/io/kamax/mxisd/config/LdapConfig.groovy
+++ b/src/main/groovy/io/kamax/mxisd/config/LdapConfig.groovy
@@ -20,7 +20,6 @@
 
 package io.kamax.mxisd.config
 
-import io.kamax.mxisd.api.ThreePidType
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 import org.springframework.beans.factory.InitializingBean
@@ -40,7 +39,7 @@ class LdapConfig implements InitializingBean {
     private String attribute
     private String bindDn
     private String bindPassword
-    private Map<ThreePidType, String> mappings
+    private Map<String, String> mappings
 
     String getHost() {
         return host
@@ -98,15 +97,15 @@ class LdapConfig implements InitializingBean {
         this.bindPassword = bindPassword
     }
 
-    Map<ThreePidType, String> getMappings() {
+    Map<String, String> getMappings() {
         return mappings
     }
 
-    void setMappings(Map<ThreePidType, String> mappings) {
+    void setMappings(Map<String, String> mappings) {
         this.mappings = mappings
     }
 
-    Optional<String> getMapping(ThreePidType type) {
+    Optional<String> getMapping(String type) {
         if (mappings == null) {
             return Optional.empty()
         }
@@ -118,4 +117,5 @@ class LdapConfig implements InitializingBean {
     void afterPropertiesSet() throws Exception {
         log.info("Matrix ID type: {}", getType())
     }
+
 }
diff --git a/src/main/groovy/io/kamax/mxisd/controller/v1/MappingController.groovy b/src/main/groovy/io/kamax/mxisd/controller/v1/MappingController.groovy
index dbc870e..45bd0f2 100644
--- a/src/main/groovy/io/kamax/mxisd/controller/v1/MappingController.groovy
+++ b/src/main/groovy/io/kamax/mxisd/controller/v1/MappingController.groovy
@@ -22,7 +22,6 @@ package io.kamax.mxisd.controller.v1
 
 import groovy.json.JsonOutput
 import groovy.json.JsonSlurper
-import io.kamax.mxisd.api.ThreePidType
 import io.kamax.mxisd.lookup.BulkLookupRequest
 import io.kamax.mxisd.lookup.SingleLookupRequest
 import io.kamax.mxisd.lookup.ThreePidMapping
@@ -58,11 +57,9 @@ class MappingController {
         String remote = StringUtils.defaultIfBlank(request.getHeader("X-FORWARDED-FOR"), request.getRemoteAddr())
         log.info("Got request from {}", remote)
 
-        ThreePidType type = ThreePidType.valueOf(medium)
-
         SingleLookupRequest lookupRequest = new SingleLookupRequest()
         lookupRequest.setRequester(remote)
-        lookupRequest.setType(type)
+        lookupRequest.setType(medium)
         lookupRequest.setThreePid(address)
 
         Optional<?> lookupOpt = strategy.find(lookupRequest)
diff --git a/src/main/groovy/io/kamax/mxisd/lookup/SingleLookupRequest.groovy b/src/main/groovy/io/kamax/mxisd/lookup/SingleLookupRequest.groovy
index ba256dd..3f36ae6 100644
--- a/src/main/groovy/io/kamax/mxisd/lookup/SingleLookupRequest.groovy
+++ b/src/main/groovy/io/kamax/mxisd/lookup/SingleLookupRequest.groovy
@@ -20,18 +20,16 @@
 
 package io.kamax.mxisd.lookup
 
-import io.kamax.mxisd.api.ThreePidType
-
 class SingleLookupRequest extends ALookupRequest {
 
-    private ThreePidType type
+    private String type
     private String threePid
 
-    ThreePidType getType() {
+    String getType() {
         return type
     }
 
-    void setType(ThreePidType type) {
+    void setType(String type) {
         this.type = type
     }
 
diff --git a/src/main/groovy/io/kamax/mxisd/lookup/ThreePidMapping.java b/src/main/groovy/io/kamax/mxisd/lookup/ThreePidMapping.java
index 9d37783..741e56b 100644
--- a/src/main/groovy/io/kamax/mxisd/lookup/ThreePidMapping.java
+++ b/src/main/groovy/io/kamax/mxisd/lookup/ThreePidMapping.java
@@ -74,4 +74,5 @@ public class ThreePidMapping {
     public String toString() {
         return JsonOutput.toJson(this);
     }
+
 }
diff --git a/src/main/groovy/io/kamax/mxisd/lookup/provider/DnsLookupProvider.groovy b/src/main/groovy/io/kamax/mxisd/lookup/provider/DnsLookupProvider.groovy
index d8033f7..f373bc1 100644
--- a/src/main/groovy/io/kamax/mxisd/lookup/provider/DnsLookupProvider.groovy
+++ b/src/main/groovy/io/kamax/mxisd/lookup/provider/DnsLookupProvider.groovy
@@ -20,7 +20,6 @@
 
 package io.kamax.mxisd.lookup.provider
 
-import io.kamax.mxisd.api.ThreePidType
 import io.kamax.mxisd.config.ServerConfig
 import io.kamax.mxisd.lookup.SingleLookupRequest
 import io.kamax.mxisd.lookup.ThreePidMapping
@@ -112,12 +111,13 @@ class DnsLookupProvider extends RemoteIdentityServerProvider {
 
     @Override
     Optional<?> find(SingleLookupRequest request) {
-        log.info("Performing DNS lookup for {}", request.getThreePid())
-        if (ThreePidType.email != request.getType()) {
+        if (!StringUtils.equals("email", request.getType())) { // TODO use enum
             log.info("Skipping unsupported type {} for {}", request.getType(), request.getThreePid())
             return Optional.empty()
         }
 
+        log.info("Performing DNS lookup for {}", request.getThreePid())
+
         String domain = request.getThreePid().substring(request.getThreePid().lastIndexOf("@") + 1)
         log.info("Domain name for {}: {}", request.getThreePid(), domain)
         Optional<String> baseUrl = findIdentityServerForDomain(domain)
@@ -134,7 +134,7 @@ class DnsLookupProvider extends RemoteIdentityServerProvider {
         Map<String, List<ThreePidMapping>> domains = new HashMap<>()
 
         for (ThreePidMapping mapping : mappings) {
-            if (!StringUtils.equals(mapping.getMedium(), ThreePidType.email.toString())) {
+            if (!StringUtils.equals("email", mapping.getMedium())) {
                 log.info("Skipping unsupported type {} for {}", mapping.getMedium(), mapping.getValue())
                 continue
             }
diff --git a/src/main/groovy/io/kamax/mxisd/lookup/provider/LdapProvider.groovy b/src/main/groovy/io/kamax/mxisd/lookup/provider/LdapProvider.groovy
index 53e3348..a1e60aa 100644
--- a/src/main/groovy/io/kamax/mxisd/lookup/provider/LdapProvider.groovy
+++ b/src/main/groovy/io/kamax/mxisd/lookup/provider/LdapProvider.groovy
@@ -20,7 +20,6 @@
 
 package io.kamax.mxisd.lookup.provider
 
-import io.kamax.mxisd.api.ThreePidType
 import io.kamax.mxisd.config.LdapConfig
 import io.kamax.mxisd.config.ServerConfig
 import io.kamax.mxisd.lookup.SingleLookupRequest
@@ -61,7 +60,7 @@ class LdapProvider implements ThreePidProvider {
         return 20
     }
 
-    Optional<String> lookup(LdapConnection conn, ThreePidType medium, String value) {
+    Optional<String> lookup(LdapConnection conn, String medium, String value) {
         Optional<String> queryOpt = ldapCfg.getMapping(medium)
         if (!queryOpt.isPresent()) {
             log.warn("{} is not a supported 3PID type for LDAP lookup", medium)
@@ -142,8 +141,7 @@ class LdapProvider implements ThreePidProvider {
 
             for (ThreePidMapping mapping : mappings) {
                 try {
-                    ThreePidType type = ThreePidType.valueOf(mapping.getMedium())
-                    Optional<String> mxid = lookup(conn, type, mapping.getValue())
+                    Optional<String> mxid = lookup(conn, mapping.getMedium(), mapping.getValue())
                     if (mxid.isPresent()) {
                         mapping.setMxid(mxid.get())
                         mappingsFound.add(mapping)
diff --git a/src/main/groovy/io/kamax/mxisd/lookup/provider/RemoteIdentityServerProvider.groovy b/src/main/groovy/io/kamax/mxisd/lookup/provider/RemoteIdentityServerProvider.groovy
index abcee20..46da9b1 100644
--- a/src/main/groovy/io/kamax/mxisd/lookup/provider/RemoteIdentityServerProvider.groovy
+++ b/src/main/groovy/io/kamax/mxisd/lookup/provider/RemoteIdentityServerProvider.groovy
@@ -23,7 +23,6 @@ package io.kamax.mxisd.lookup.provider
 import groovy.json.JsonException
 import groovy.json.JsonOutput
 import groovy.json.JsonSlurper
-import io.kamax.mxisd.api.ThreePidType
 import io.kamax.mxisd.controller.v1.ClientBulkLookupRequest
 import io.kamax.mxisd.lookup.ThreePidMapping
 import org.apache.http.HttpEntity
@@ -94,7 +93,7 @@ abstract class RemoteIdentityServerProvider implements ThreePidProvider {
         return Optional.empty()
     }
 
-    Optional<?> find(String remote, ThreePidType type, String threePid) {
+    Optional<?> find(String remote, String type, String threePid) {
         log.info("Looking up {} 3PID {} using {}", type, threePid, remote)
 
         HttpURLConnection rootSrvConn = (HttpURLConnection) new URL(