diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
deleted file mode 100644
index c6f22ba..0000000
--- a/.github/workflows/audit.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: Audit
-on:
-  schedule:
-    - cron: '0 0 * * *'
-  push:
-    branches: [ main ]
-    paths:
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-  pull_request:
-    branches: [ main ]
-    paths:
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-jobs:
-  security_audit:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-      - uses: actions-rs/audit-check@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..bb4713b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,88 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - '**.rs'
+      - '**.toml'
+      - '.github/workflows/**'
+  pull_request:
+    branches: [ main ]
+    paths:
+      - '**.rs'
+      - '**.toml'
+      - '.github/workflows/**'
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        rust: [stable]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+        
+      - name: Checkout code
+        uses: actions/checkout@v2
+      
+      - name: Build code
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --all --all-features
+      
+      - name: Test code
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all --all-features
+          
+  audit:
+    needs: test
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    
+    - name: Audit dependencies
+      uses: EmbarkStudios/cargo-deny-action@v1
+      
+  lint:
+    needs: test
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: clippy
+      
+      - name: Checkout code
+        uses: actions/checkout@v2
+      
+      - name: Check code formatting
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check --config imports_granularity=Crate,group_imports=StdExternalCrate
+      
+      - name: Check for common mistakes and missed improvements
+        uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
deleted file mode 100644
index 13be55d..0000000
--- a/.github/workflows/rust.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: Rust
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-env:
-  CARGO_TERM_COLOR: always
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Build
-      run: cargo build --verbose
-    - name: Test
-      run: cargo test --verbose
-    - name: Fmt
-      run: cargo fmt -- --check --config imports_granularity=Crate,group_imports=StdExternalCrate
-    - name: Clippy
-      run: cargo clippy
diff --git a/.github/workflows/scheduled.yml b/.github/workflows/scheduled.yml
new file mode 100644
index 0000000..d6ac043
--- /dev/null
+++ b/.github/workflows/scheduled.yml
@@ -0,0 +1,12 @@
+name: Scheduled
+on:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v2
+    - uses: EmbarkStudios/cargo-deny-action@v1
diff --git a/README.md b/README.md
index 25bdd3d..31837cf 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+![CI](https://github.com/duesee/smtp-codec/actions/workflows/ci.yml/badge.svg)
+![Scheduled](https://github.com/duesee/smtp-codec/actions/workflows/scheduled.yml/badge.svg)
+
 # SMTP Protocol
 
 This crate provides some types and many parsers for SMTP. Many things are there, but it is still in a very rough state.
diff --git a/deny.toml b/deny.toml
new file mode 100644
index 0000000..687bbbc
--- /dev/null
+++ b/deny.toml
@@ -0,0 +1,9 @@
+[bans]
+multiple-versions = "deny"
+
+[sources]
+unknown-registry = "deny"
+unknown-git      = "deny"
+
+[licenses]
+allow = [ "Apache-2.0", "MIT" ]