Temporary Email Address 🦋

Author: labnol

google-apps-script/disposable-gmail/README.md

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+## 🗑 Disposable Email Address
+
+Create a second Gmail address and turn it into a temporary and disposable email address.
+
+[Temporary Gmail Address](https://www.labnol.org/internet/disposable-email-address/28072/)
+
+> This software is provided "as-is," without any express or implied warranty.

google-apps-script/disposable-gmail/appsscript.json

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+{
+  "timeZone": "Asia/Kolkata",
+  "dependencies": {},
+  "exceptionLogging": "STACKDRIVER",
+  "runtimeVersion": "V8",
+  "oauthScopes": [
+    "https://www.googleapis.com/auth/gmail.send",
+    "https://www.googleapis.com/auth/gmail.modify",
+    "https://www.googleapis.com/auth/script.scriptapp"
+  ]
+}

google-apps-script/disposable-gmail/code.js

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+/**
+ * Disposable Gmail Address
+ * ========================
+ *
+ * Written by Amit Agarwal
+ * Email: [email protected]
+ * Web: https://www.labnol.org
+ * Twitter: @labnol
+ *
+ * Under MIT License
+ */
+
+const RECIPIENT = '[email protected]';
+
+/**
+ * Run a trigger every 15 minutes that checks for
+ * new emails in the Gmail inbox folder
+ */
+const initialize = () => {
+  ScriptApp.getProjectTriggers().forEach((trigger) => {
+    ScriptApp.deleteTrigger(trigger);
+  });
+  ScriptApp.newTrigger('checkTemporaryInbox').timeBased().everyMinutes(5).create();
+};
+
+/** Check if an email message should be forward from the
+ * temporary inbox to the main Gmail inbox based on the
+ * date in the TO field of the incoming message
+ */
+const isAllowed_ = (email = '') => {
+  const [, mm, dd, yyyy] = email.match(/\+(\d{2})(\d{2})(\d{4})?@/) || [];
+  if (mm) {
+    const now = new Date();
+    const date = new Date([yyyy || now.getFullYear(), mm, dd].join('/'));
+    date.setHours(23);
+    date.setMinutes(59);
+    return date > now;
+  }
+  return false;
+};
+
+/**
+ * Fetch the 10 most recent threads from Gmail inbox,
+ * parse the To field of each message and either forward it
+ * or archive the emssage
+ */
+const checkTemporaryInbox = () => {
+  GmailApp.getInboxThreads(0, 10).forEach((thread) => {
+    thread.getMessages().forEach((message) => {
+      if (isAllowed_(message.getTo())) {
+        message.forward(RECIPIENT);
+      }
+    });
+    thread.moveToArchive();
+  });
+};