diff --git a/auth/email.py b/auth/email.py
index ca369aa8..5a7ae3ca 100644
--- a/auth/email.py
+++ b/auth/email.py
@@ -5,12 +5,14 @@ from settings import MAILGUN_API_KEY, MAILGUN_DOMAIN
 api_url = "https://api.mailgun.net/v3/%s/messages" % MAILGUN_DOMAIN
 noreply = "discours.io <noreply@%s>" % MAILGUN_DOMAIN
 
-async def send_auth_email(user, token):
+
+async def send_auth_email(user, token, lang="ru"):
     try:
         to = "%s <%s>" % (user.name, user.email)
-        # TODO: i18n
         subject = "Confirm email"
-        template = "email_confirmation_ru"
+        if lang not in ['ru', 'en']:
+            lang = 'ru'
+        template = "email_confirmation_" + lang
 
         response = requests.post(
             api_url,
diff --git a/resolvers/auth.py b/resolvers/auth.py
index 3f4e8f32..b98c469a 100644
--- a/resolvers/auth.py
+++ b/resolvers/auth.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 from urllib.parse import quote_plus
 from datetime import datetime
 
@@ -91,7 +93,7 @@ def generate_unique_slug(name):
             c += 1
         if not user:
             unique_slug = slug
-            return quote_plus(unique_slug)
+            return quote_plus(unique_slug).replace('+', '-')
 
 
 @mutation.field("registerUser")
@@ -120,7 +122,7 @@ async def register(_, _info, email: str, password: str = "", name: str = ""):
 
 
 @mutation.field("sendLink")
-async def auth_send_link(_, _info, email):
+async def auth_send_link(_, _info, email, lang="ru"):
     """send link with confirm code to email"""
     with local_session() as session:
         user = session.query(User).filter(User.email == email).first()
@@ -128,12 +130,12 @@ async def auth_send_link(_, _info, email):
             raise ObjectNotExist("User not found")
         else:
             token = await TokenStorage.create_onetime(user)
-            await send_auth_email(user, token)
+            await send_auth_email(user, token, lang)
             return user
 
 
 @query.field("signIn")
-async def login(_, _info, email: str, password: str = ""):
+async def login(_, _info, email: str, password: str = "", lang: str = "ru"):
 
     with local_session() as session:
         orm_user = session.query(User).filter(User.email == email).first()
@@ -145,7 +147,7 @@ async def login(_, _info, email: str, password: str = ""):
         if not password:
             print(f"[auth] send confirm link to {email}")
             token = await TokenStorage.create_onetime(orm_user)
-            await send_auth_email(orm_user, token)
+            await send_auth_email(orm_user, token, lang)
             # FIXME: not an error, warning
             return {"error": "no password, email link was sent"}
 
diff --git a/schema.graphql b/schema.graphql
index a3b47bf8..62800219 100644
--- a/schema.graphql
+++ b/schema.graphql
@@ -155,7 +155,7 @@ type Mutation {
   # auth
   refreshSession: AuthResult!
   registerUser(email: String!, password: String, name: String): AuthResult!
-  sendLink(email: String!): Result!
+  sendLink(email: String!, lang: String): Result!
   confirmEmail(code: String!): AuthResult!
 
   # shout
@@ -212,7 +212,7 @@ type Query {
 
   # auth
   isEmailUsed(email: String!): Boolean!
-  signIn(email: String!, password: String): AuthResult!
+  signIn(email: String!, password: String, lang: String): AuthResult!
   signOut: AuthResult!
 
   # profile