diff --git a/types/sendmail/index.d.ts b/types/sendmail/index.d.ts
new file mode 100644
index 0000000000..191c0514fb
--- /dev/null
+++ b/types/sendmail/index.d.ts
@@ -0,0 +1,70 @@
+// Type definitions for sendmail 1.4
+// Project: https://github.com/guileen/node-sendmail
+// Definitions by: My Self <https://github.com/me>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/*~ If this module is a UMD module that exposes a global variable 'myLib' when
+ *~ loaded outside a module loader environment, declare that global here.
+ *~ Otherwise, delete this declaration.
+ */
+declare namespace sendMailConstructor {
+    export interface IOptions {
+        logger?: {
+            debug?: () => void;
+            info?: () => void;
+            warn?: () => void;
+            error?: () => void;
+        };
+        silent?: boolean;
+        /** Default: False */
+        dkim?:
+            | boolean
+            | {
+                  privateKey: string;
+                  keySelector: string;
+              };
+        /** Default: False */
+        devPort?: number | boolean;
+        /** Default: localhost */
+        devHost?: string;
+        /** Default: 25 */
+        smtpPort?: number;
+        /** Default: -1 - extra smtp host after resolveMX */
+        smtpHost?: string | number;
+    }
+
+    export interface IMailInput {
+        from: string;
+        to: string;
+        cc?: string;
+        bcc?: string;
+        replyTo?: string;
+        returnTo?: string;
+        subject: string;
+        type?: string;
+        charset?: string;
+        encoding?: string;
+        id?: string;
+        headers?: object;
+        content?: string;
+        html?: string;
+        attachments?: {
+            type: string;
+            filename: string;
+            content: any;
+        }[];
+    }
+}
+
+type CallbackFn = (err: Error, domain: string) => void;
+
+type SendMailFn = (
+    mail: sendMailConstructor.IMailInput,
+    callback: CallbackFn
+) => void;
+
+declare function sendMailConstructor(
+    options: sendMailConstructor.IOptions
+): SendMailFn;
+
+export = sendMailConstructor;
diff --git a/types/sendmail/sendmail-tests.ts b/types/sendmail/sendmail-tests.ts
new file mode 100644
index 0000000000..f57c3b00d9
--- /dev/null
+++ b/types/sendmail/sendmail-tests.ts
@@ -0,0 +1,24 @@
+import sendmail = require("sendmail");
+
+const emailSender = sendmail({
+    silent: false
+});
+
+const sendEmail = (options: sendmail.IMailInput): Promise<boolean> =>
+    new Promise((resolve, reject) => {
+        emailSender(options, (err, reply) => {
+            // if error happened or returned code is now started with 2**
+            if (err || !reply.startsWith("2")) {
+                reject(err);
+            } else {
+                resolve(true);
+            }
+        });
+    });
+
+sendEmail({
+    from: "Test Mail <noreply@mydomain.com>",
+    to: "test@mydomain.com",
+    subject: "First Test",
+    html: "This is a Test message!"
+});
diff --git a/types/sendmail/tsconfig.json b/types/sendmail/tsconfig.json
new file mode 100644
index 0000000000..c4cf4b7613
--- /dev/null
+++ b/types/sendmail/tsconfig.json
@@ -0,0 +1,22 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "sendmail-tests.ts"
+    ]
+}
diff --git a/types/sendmail/tslint.json b/types/sendmail/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/sendmail/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }