diff --git a/.travis.yml b/.travis.yml
index 57e0037c..c212738e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,6 +32,9 @@ before_script:
   - export REACT_APP_API_URL=http://127.0.0.1
   - export NODE_ENV=development
   - export TEST_URL=http://127.0.0.1
+  - export UI_URL=http://127.0.0.1:3000
+  - export EMAIL_URL=smtp://none:none@0.0.0.0:1025
+  - export SENDER_EMAIL=fittrackee@example.com
   - export DISPLAY=:99.0
   - export BRANCH=$(if [ "$TRAVIS_PULL_REQUEST" == "false" ]; then echo $TRAVIS_BRANCH; else echo $TRAVIS_PULL_REQUEST_BRANCH; fi)
   - sh -e /etc/init.d/xvfb start
diff --git a/docker-compose-ci.yml b/docker-compose-ci.yml
index b51b1ce9..a93682e6 100644
--- a/docker-compose-ci.yml
+++ b/docker-compose-ci.yml
@@ -19,6 +19,9 @@ services:
     environment:
       - DATABASE_URL=postgres://postgres:postgres@fittrackee-db:5432/fittrackee
       - DATABASE_TEST_URL=postgres://postgres:postgres@fittrackee-db:5432/fittrackee_test
+      - UI_URL=http://127.0.0.1:3000
+      - EMAIL_URL=smtp://none:none@0.0.0.0:1025
+      - SENDER_EMAIL=fittrackee@example.com
       - FLASK_APP=server.py
       - FLASK_DEBUG=1
       - APP_SETTINGS=fittrackee_api.config.TestingConfig
diff --git a/docker-compose.yml b/docker-compose.yml
index 65a354d1..ac73264d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,6 +19,9 @@ services:
     environment:
       - DATABASE_URL=postgres://postgres:postgres@fittrackee-db:5432/fittrackee
       - DATABASE_TEST_URL=postgres://postgres:postgres@fittrackee-db:5432/fittrackee_test
+      - UI_URL=http://127.0.0.1:3000
+      - EMAIL_URL=smtp://none:none@0.0.0.0:1025
+      - SENDER_EMAIL=fittrackee@example.com
       - FLASK_APP=server.py
       - FLASK_DEBUG=1
       - APP_SETTINGS=fittrackee_api.config.DevelopmentConfig
diff --git a/fittrackee_api/Dockerfile b/fittrackee_api/Dockerfile
index 5400444f..73b05c95 100644
--- a/fittrackee_api/Dockerfile
+++ b/fittrackee_api/Dockerfile
@@ -10,6 +10,14 @@ WORKDIR /usr/src/app
 COPY ./pyproject.toml /usr/src/app/pyproject.toml
 COPY ./poetry.lock /usr/src/app/poetry.lock
 
+# add environment variables
+ARG UI_URL
+ARG EMAIL_URL
+ARG SENDER_EMAIL
+ENV UI_URL $UI_URL
+ENV EMAIL_URL $EMAIL_URL
+ENV SENDER_EMAIL $SENDER_EMAIL
+
 # install requirements
 RUN pip install --upgrade pip
 RUN pip install poetry