diff --git a/docker-compose.yml b/docker-compose.yml
index 79ffdb50a..0e985c5b3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -49,6 +49,13 @@ services:
       - DATABASE_NAME=${DATABASE_NAME:-baserow}
       - ADDITIONAL_APPS
       - MEDIA_URL=http://localhost:${MEDIA_PORT:-4000}/media/
+      - EMAIL_SMTP
+      - EMAIL_SMTP_HOST
+      - EMAIL_SMTP_PORT
+      - EMAIL_SMPT_USE_TLS
+      - EMAIL_SMTP_USER
+      - EMAIL_SMTP_PASSWORD
+      - FROM_EMAIL
     ports:
       - "${BACKEND_PORT:-8000}:8000"
     depends_on:
@@ -70,6 +77,15 @@ services:
     command: celery
     depends_on:
       - backend
+    environment:
+      - ADDITIONAL_APPS
+      - EMAIL_SMTP
+      - EMAIL_SMTP_HOST
+      - EMAIL_SMTP_PORT
+      - EMAIL_SMPT_USE_TLS
+      - EMAIL_SMTP_USER
+      - EMAIL_SMTP_PASSWORD
+      - FROM_EMAIL
     volumes:
       - media:/baserow/media
     networks:
diff --git a/docs/development/running-the-dev-environment.md b/docs/development/running-the-dev-environment.md
index 344a79729..6baf31c49 100644
--- a/docs/development/running-the-dev-environment.md
+++ b/docs/development/running-the-dev-environment.md
@@ -24,6 +24,9 @@ If you haven't already installed docker and docker-compose on your computer you
 so by following the instructions on https://docs.docker.com/desktop/ and
 https://docs.docker.com/compose/install/.
 
+> Docker version 20.10.0 is the minimum required to build Baserow. Please check that 
+> your docker is up to date by running `docker -v`.
+
 You will also need git installed which you can do by following the instructions on
 https://www.linode.com/docs/development/version-control/how-to-install-git-on-linux-mac-and-windows/
 .
@@ -33,9 +36,9 @@ the following commands in your terminal.
 
 ```
 $ docker -v
-Docker version 19.03.8, build afacb8b
+Docker version 20.10.6, build 370c289
 $ docker-compose -v
-docker-compose version 1.25.5, build 8a1c60f6
+docker-compose version 1.26.2, build eefe0d31
 $ git --version
 git version 2.24.3 (Apple Git-128)
 ```
diff --git a/docs/guides/baserow-docker-how-to.md b/docs/guides/baserow-docker-how-to.md
index 1853ef0df..4b63c0c70 100644
--- a/docs/guides/baserow-docker-how-to.md
+++ b/docs/guides/baserow-docker-how-to.md
@@ -3,6 +3,9 @@
 Find below a list of FAQs and common operations when working with Baserow's docker
 environment.
 
+> Docker version 20.10.0 is the minimum required to build Baserow. Please check that
+> your docker is up to date by running `docker -v`.
+
 See [baserow's docker api](../reference/baserow-docker-api.md) for the full details on
 what commands and environment variables baserow's docker-compose and docker image's
 support.
@@ -53,6 +56,16 @@ $ # or using dev.sh
 $ POSTGRES_PORT=5555 REDIS_PORT=6666 MJML_PORT=7777 ./dev.sh
 ```
 
+### Configure an external email server
+
+See [the introduction](../getting-started/introduction.md) for the all the of email
+environment variables available to configure Baserow. For a simple example you can start
+up Baserow locally and have it connect to an external SMTP server like so:
+
+```bash
+EMAIL_SMTP_HOST=TODO EMAIL_SMTP_PORT=TODO EMAIL_SMTP=True docker-compose up
+```
+
 ### Change the container user
 
 When running the dev env you can set the `UID` and `GID` environment variables when
@@ -116,12 +129,19 @@ $ ./dev.sh run backend manage sync_templates
 
 ## Common Problems
 
+### Build Error - Service 'backend' failed to build: unable to convert uid/gid chown
+
+This error occurs when attempting to build Baserow's docker images with a version of
+Docker earlier than 20.10.0. You can check your local docker version by
+running `docker -v` and fix the error by installing the latest version of Docker from
+https://docs.docker.com/get-docker/.
+
 ### Permission denied errors
 
 If you used Baserow's dev env prior to April 2021 with the provided docker files you
 might encounter permission errors in the containers when upgrading. With the old docker
 files build output could end up being owned by root. These root owned files if they
-still exist in your repo will cause a problem starting the new dev env as Baserow's 
+still exist in your repo will cause a problem starting the new dev env as Baserow's
 containers now run as a non-root user.
 
 To fix simply ensure all files in your baserow git repo are owned by your current user
diff --git a/docs/guides/running-baserow-locally.md b/docs/guides/running-baserow-locally.md
index aa0db304d..4b4d8cc11 100644
--- a/docs/guides/running-baserow-locally.md
+++ b/docs/guides/running-baserow-locally.md
@@ -21,6 +21,9 @@ If you haven't already installed docker and docker-compose on your computer you
 so by following the instructions on https://docs.docker.com/desktop/ and 
 https://docs.docker.com/compose/install/.
 
+> Docker version 20.10.0 is the minimum required to build Baserow. Please ensure your
+> your docker is up to date by running `docker -v`.
+
 You will also need git installed which you can do by following the instructions on 
 https://www.linode.com/docs/development/version-control/how-to-install-git-on-linux-mac-and-windows/.
 
@@ -29,9 +32,9 @@ following commands in your terminal.
 
 ```
 $ docker -v
-Docker version 19.03.8, build afacb8b
+Docker version 20.10.6, build 370c289
 $ docker-compose -v
-docker-compose version 1.25.5, build 8a1c60f6
+docker-compose version 1.26.2, build eefe0d31
 $ git --version
 git version 2.24.3 (Apple Git-128)
 ```
diff --git a/docs/reference/baserow-docker-api.md b/docs/reference/baserow-docker-api.md
index c63cfba4c..c29742224 100644
--- a/docs/reference/baserow-docker-api.md
+++ b/docs/reference/baserow-docker-api.md
@@ -124,8 +124,26 @@ Backend configuration:
 - `SYNC_TEMPLATES_ON_STARTUP` (default `true`) : When `true` on backend server startup
   it will run the baserow management command `sync_templates` which loads any templates
   found in `./backend/templates` into Baserow.
+  
+Pass through variables:
 
-### Dev Only Variables 
+These environment variables when provided to the docker-compose files are passed through
+to the correct containers. See [the introduction](../getting-started/introduction.md) 
+for what these variables do.
+
+- `PUBLIC_BACKEND_URL`
+- `PUBLIC_WEB_FRONTEND_URL`
+- `MEDIA_URL`
+- `EMAIL_SMTP`
+- `EMAIL_SMTP_HOST`
+- `EMAIL_SMTP_PORT`
+- `EMAIL_SMPT_USE_TLS`
+- `EMAIL_SMTP_USER`
+- `EMAIL_SMTP_PASSWORD`
+- `FROM_EMAIL`
+
+
+### Dev Only Variables
 
 - `UID` (default `1000` or your user id when using `./dev.sh`) : Sets which user id will
   be used to build Baserow's images with and the user id which will be used to run the