diff --git a/projects/greenmail/Dockerfile b/projects/greenmail/Dockerfile
new file mode 100644
index 000000000..bc9f6b6ec
--- /dev/null
+++ b/projects/greenmail/Dockerfile
@@ -0,0 +1,29 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder-jvm
+
+RUN git clone --depth 1 https://github.com/greenmail-mail-test/greenmail.git greenmail
+
+RUN curl -L https://downloads.apache.org/maven/maven-3/3.8.6/binaries/apache-maven-3.8.6-bin.zip -o maven.zip && \
+    unzip maven.zip -d $SRC/maven && \
+    rm -rf maven.zip
+
+ENV MVN $SRC/maven/apache-maven-3.8.6/bin/mvn
+
+COPY build.sh $SRC/
+COPY *.java $SRC/
+WORKDIR $SRC/greenmail
diff --git a/projects/greenmail/UserManagerFuzzer.java b/projects/greenmail/UserManagerFuzzer.java
new file mode 100644
index 000000000..1e0cbe0d7
--- /dev/null
+++ b/projects/greenmail/UserManagerFuzzer.java
@@ -0,0 +1,52 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import com.code_intelligence.jazzer.api.FuzzedDataProvider;
+import com.code_intelligence.jazzer.api.FuzzerSecurityIssueMedium;
+
+import com.icegreen.greenmail.util.GreenMail;
+import com.icegreen.greenmail.util.ServerSetup;
+import com.icegreen.greenmail.user.GreenMailUser;
+import com.icegreen.greenmail.user.UserManager;
+import com.icegreen.greenmail.user.UserException;
+
+
+public class UserManagerFuzzer {
+    public static void fuzzerTestOneInput(FuzzedDataProvider data) {
+        
+        GreenMail greenMail = new GreenMail(ServerSetup.ALL);
+        String email = data.consumeString(240);
+        String login = data.consumeString(240);
+        String pwd = data.consumeRemainingAsString();
+        try {
+            
+            UserManager userManger = greenMail.getUserManager();
+            userManger.createUser(email, login, pwd);
+            
+            GreenMailUser greenMailUser = userManger.getUser(login);
+
+            if (!greenMailUser.getLogin().equals(login)) {
+                throw new FuzzerSecurityIssueMedium("User is not created");
+            }
+            if (!userManger.test(login, pwd)) {
+                throw new FuzzerSecurityIssueMedium("Loggin is not possible!");
+            }
+
+            userManger.deleteUser(greenMailUser);
+
+        } catch (UserException e) { }
+    }
+}
diff --git a/projects/greenmail/build.sh b/projects/greenmail/build.sh
new file mode 100755
index 000000000..c998741c8
--- /dev/null
+++ b/projects/greenmail/build.sh
@@ -0,0 +1,49 @@
+#!/bin/bash -eu
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+MAVEN_ARGS="-Dmaven.test.skip=true -Djavac.src.version=15 -Djavac.target.version=15 -Djdk.version=15"
+$MVN clean package org.apache.maven.plugins:maven-shade-plugin:3.2.4:shade $MAVEN_ARGS
+
+CURRENT_VERSION=$($MVN org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate -Dexpression=project.version -q -DforceStdout)
+cp ./greenmail-core/target/greenmail-$CURRENT_VERSION.jar $OUT/greenmail-core.jar
+
+ALL_JARS="greenmail-core.jar"
+
+# The classpath at build-time includes the project jars in $OUT as well as the
+# Jazzer API.
+BUILD_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "$OUT/%s:"):$JAZZER_API_PATH
+
+# All .jar and .class files lie in the same directory as the fuzzer at runtime.
+RUNTIME_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "\$this_dir/%s:"):\$this_dir
+
+for fuzzer in $(find $SRC -name '*Fuzzer.java'); do
+  fuzzer_basename=$(basename -s .java $fuzzer)
+  javac -cp $BUILD_CLASSPATH $fuzzer
+  cp $SRC/$fuzzer_basename.class $OUT/
+
+  # Create an execution wrapper that executes Jazzer with the correct arguments.
+  echo "#!/bin/sh
+# LLVMFuzzerTestOneInput for fuzzer detection.
+this_dir=\$(dirname \"\$0\")
+LD_LIBRARY_PATH=\"$JVM_LD_LIBRARY_PATH\":\$this_dir \
+\$this_dir/jazzer_driver --agent_path=\$this_dir/jazzer_agent_deploy.jar \
+--cp=$RUNTIME_CLASSPATH \
+--target_class=$fuzzer_basename \
+--jvm_args=\"-Xmx2048m\" \
+\$@" > $OUT/$fuzzer_basename
+  chmod u+x $OUT/$fuzzer_basename
+done
diff --git a/projects/greenmail/project.yaml b/projects/greenmail/project.yaml
new file mode 100644
index 000000000..f28681a32
--- /dev/null
+++ b/projects/greenmail/project.yaml
@@ -0,0 +1,14 @@
+homepage: "https://github.com/greenmail-mail-test/greenmail"
+language: jvm
+main_repo: "https://github.com/greenmail-mail-test/greenmail.git"
+fuzzing_engines:
+  - libfuzzer
+sanitizers:
+  - address
+vendor_ccs:
+  - "wagner@code-intelligence.com"
+  - "yakdan@code-intelligence.com"
+  - "glendowne@code-intelligence.com"
+  - "patrice.salathe@code-intelligence.com"
+  - "hlin@code-intelligence.com"
+  - "jacek.trossen@code-intelligence.com"
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