diff --git a/Projects-Using-Bats.md b/Projects-Using-Bats.md
index e6343e2..20be1ae 100644
--- a/Projects-Using-Bats.md
+++ b/Projects-Using-Bats.md
@@ -9,6 +9,7 @@ If your open-source project uses Bats, please link to its test suite below.
 * **[BSFL](https://github.com/SkypLabs/bsfl)** - https://github.com/SkypLabs/bsfl/tree/master/test
 * **[cf4ocl](https://github.com/fakenmc/cf4ocl)** - https://github.com/fakenmc/cf4ocl/tree/master/tests/utils
 * **[docker-machine](https://github.com/docker/machine)** - https://github.com/docker/machine/tree/master/test/integration
+* **[docker-mailserver](https://github.com/tomav/docker-mailserver/tree/master/test)** - https://github.com/tomav/docker-mailserver/tree/master/test
 * **[docker-swarm](https://github.com/docker/swarm)** - https://github.com/docker/swarm/tree/master/test
 * **[dokku](https://github.com/progrium/dokku)** - https://github.com/progrium/dokku/tree/master/tests/unit
 * **[Ellipsis](https://github.com/ellipsis/ellipsis)** - https://github.com/ellipsis/ellipsis/tree/master/test