diff --git a/nginx/default.conf b/nginx/default.conf
index ad278dca..e309b358 100644
--- a/nginx/default.conf
+++ b/nginx/default.conf
@@ -10,7 +10,7 @@ server {
     listen 8000 ssl;
     ssl_certificate /etc/ssl/private/portal-cert.pem;
     ssl_certificate_key /etc/ssl/private/portal-key.pem;
-    server_name dev.concept.ru www.dev.concept.ru api.portal.acconcept.ru www.api.portal.acconcept.ru;
+    server_name dev.concept.ru www.dev.concept.ru api.portal.acconcept.ru www.api.portal.acconcept.ru mail.acoconcept.ru www.mail.acoconcept.ru;
 
     location / {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@@ -30,7 +30,7 @@ server {
     listen 3000 ssl;
     ssl_certificate /etc/ssl/private/portal-cert.pem;
     ssl_certificate_key /etc/ssl/private/portal-key.pem;
-    server_name dev.concept.ru www.dev.concept.ru portal.acconcept.ru www.portal.acconcept.ru;
+    server_name dev.concept.ru www.dev.concept.ru portal.acconcept.ru www.portal.acconcept.ru mail.acoconcept.ru www.mail.acoconcept.ru;
     
     location / {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
diff --git a/rsconcept/backend/.env.prod b/rsconcept/backend/.env.prod
index c8c8bfd2..63fcbcef 100644
--- a/rsconcept/backend/.env.prod
+++ b/rsconcept/backend/.env.prod
@@ -1,8 +1,8 @@
 # Application settings
 
-ALLOWED_HOSTS=localhost;portal.acconcept.ru;dev.concept.ru
-CSRF_TRUSTED_ORIGINS=https://dev.concept.ru:3000;https://localhost:3000;https://portal.acconcept.ru:3000
-CORS_ALLOWED_ORIGINS=https://dev.concept.ru:3000;https://localhost:3000;https://portal.acconcept.ru:3000
+ALLOWED_HOSTS=localhost;portal.acconcept.ru;dev.concept.ru;mail.acoconcept.ru;
+CSRF_TRUSTED_ORIGINS=https://dev.concept.ru:3000;https://localhost:3000;https://portal.acconcept.ru;https://mail.acconcept.ru:8081;https://mail.acconcept.ru:8082
+CORS_ALLOWED_ORIGINS=https://dev.concept.ru:3000;https://localhost:3000;https://portal.acconcept.ru;https://mail.acconcept.ru:8081;https://mail.acconcept.ru:8082
 
 
 # File locations
diff --git a/rsconcept/frontend/src/utils/constants.ts b/rsconcept/frontend/src/utils/constants.ts
index 40928e58..8019e12b 100644
--- a/rsconcept/frontend/src/utils/constants.ts
+++ b/rsconcept/frontend/src/utils/constants.ts
@@ -1,6 +1,7 @@
 // Constants
 const prod = {
-  backend: 'https://dev.concept.ru:8000',
+  backend: 'https://mail.acconcept.ru:8082',
+  // backend: 'https://dev.concept.ru:8000',
   // backend: 'https://localhost:8000',
   // backend: 'https://api.portal.concept.ru',
 };