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Blog · 2026-06-09 18:39:39

25 must-know Gmail tips & tricks in 2026

Gmail Help: Everything You Need to Know — Delete, Sort, Recall & Protect Your Email

Gmail is the world's most popular email service — but even power users get stuck on the basics. Whether you want to bulk delete thousands of emails, recover an archived message, recall a sent email, or sort your inbox by sender, this guide covers every common Gmail question in one place.

And if you ever need a disposable inbox to avoid cluttering your real Gmail account with spam, sign-ups, or one-time verifications, check out TempMail.im's free fake email generator — no registration required.

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How to Delete Gmail Emails in Bulk

Deleting emails one by one is painfully slow. Here's how to nuke them in bulk:

Delete all emails in a category or label

  1. Open Gmail and click a label (e.g., Promotions, Social, or All Mail) in the left sidebar.
  2. Click the checkbox at the top-left to select all visible emails (usually 50 at a time).
  3. A banner appears: "Select all [X] conversations in [Category]" — click it to select everything.
  4. Click the Trash (delete) icon.

Delete all unread emails in Gmail

  1. In the Gmail search bar, type is:unread and press Enter.
  2. Select all, then select all conversations matching the search.
  3. Delete.

Delete old emails in Gmail

Search for older_than:1y (emails older than 1 year) or older_than:6m (6 months). Select all, then delete. You can also combine filters like older_than:1y is:unread.

How do I delete all emails in Gmail at once?

Repeat the steps above using All Mail as your starting label. Be careful — this will move everything to Trash. Gmail automatically empties Trash after 30 days, or you can empty it manually: go to Trash → Empty Trash now.

💡 Pro tip: To keep your real Gmail clean going forward, use a temporary email address for newsletters, sign-ups, and one-time verifications instead of your personal address.

How to Unarchive Emails in Gmail

Archived emails in Gmail are not deleted — they're simply removed from your inbox and stored in All Mail. Here's how to bring them back:

How to unarchive an email on Gmail (desktop)

  1. Click More → All Mail in the left sidebar (you may need to scroll down).
  2. Find the email you want to unarchive.
  3. Open it, then click the Move to Inbox button (an inbox icon with an arrow).

How to unarchive emails in the Gmail app (mobile)

  1. Tap the hamburger menu (☰) → All Mail.
  2. Open the email.
  3. Tap the three-dot menu (⋮) → Move to Inbox.

You can also search for the email's subject or sender and unarchive it directly from search results.

Gmail Archived Mail — What It Is & How It Works

Archiving in Gmail moves an email out of your inbox without deleting it. The email is stored in All Mail and remains fully searchable. Think of it as tidying your desk without throwing anything away.

To archive an email: Swipe left (mobile) or click the Archive button (box with a down-arrow icon) on desktop.

To view archived emails: Go to All Mail in the sidebar. You can also search normally — archived emails appear in search results just like inbox emails.

Archiving vs. Deleting: Archived emails stay forever (until you delete them). Deleted emails go to Trash and are permanently removed after 30 days.

How to Recall an Email in Gmail

Gmail doesn't offer a true "recall" like Outlook — but it does have an Undo Send feature that works if you act fast.

How to set up Undo Send

  1. Go to Settings (⚙️) → See all settings → General.
  2. Under Undo Send, set your cancellation period: 5, 10, 20, or 30 seconds (recommended).
  3. Click Save Changes.

How to recall a sent Gmail email

Immediately after sending, a notification appears at the bottom of the screen: "Message sent. Undo". Click Undo within the cancellation window to recall it.

⚠️ Once the cancellation window expires, the email cannot be recalled. Gmail has no server-side recall function. If the email was sent to someone outside Gmail, even the Undo Send window may not fully prevent delivery in all cases.

Can I unsend a Gmail? Yes — but only within the Undo Send window you configured. There's no option to unsend an email hours or days later.

How to Change Your Gmail Signature

On desktop

  1. Click Settings (⚙️) → See all settings → General.
  2. Scroll to the Signature section.
  3. Click + Create new, name it, then type your signature in the editor.
  4. Under Signature defaults, choose when it appears (new emails, replies).
  5. Click Save Changes at the bottom.

How do I change my signature in Gmail (mobile)?

  1. Open the Gmail app → Tap your profile picture → Settings.
  2. Select your account → tap Mobile Signature.
  3. Edit and save.

How to Create a Rule (Filter) in Gmail

Gmail calls rules "Filters". They automatically apply actions to incoming emails based on criteria you define.

How to create a rule in Gmail

  1. Go to Settings → See all settings → Filters and Blocked Addresses.
  2. Click Create a new filter.
  3. Enter your criteria: From, To, Subject, contains words, etc.
  4. Click Create filter.
  5. Choose the action: Skip Inbox, Apply label, Delete it, Forward to, Mark as read, etc.
  6. Optionally check "Also apply filter to matching conversations."
  7. Click Create filter.

Filters are powerful for automatically sorting newsletters, work emails, receipts, and notifications. Combined with labels, they make inbox zero achievable without manual effort.

How to Sort Gmail by Sender

Gmail doesn't have a traditional "sort by sender" column — but there are two ways to achieve the same result:

Search by sender

In the Gmail search bar, type from:[email protected] or from:newsletter to see all emails from a specific sender grouped together.

Gmail sort by sender using the search panel

  1. Click the Search options (▾) arrow in the search bar.
  2. Enter the sender's name or email in the From field.
  3. Click Search.

This effectively gives you a sorted view by sender. From here you can select all and bulk delete, label, or archive them.

How to Auto-Forward Gmail / Email Redirect

How to forward Gmail to another Gmail (or any email)

  1. Go to Settings → See all settings → Forwarding and POP/IMAP.
  2. Click Add a forwarding address and enter the destination email.
  3. Gmail sends a verification email to that address — confirm it.
  4. Back in Settings, choose Forward a copy of incoming mail to [address].
  5. Save changes.

Gmail auto forward (filter-based)

To forward only specific emails, create a filter and choose "Forward it to" as the action. This is called a Gmail reroute or email redirect and is useful for routing emails from specific senders to a work account or team inbox.

💡 If you want to receive emails without exposing your real Gmail address, try a disposable email with a real inbox from TempMail.im.

How to Create, Delete & Remove Labels in Gmail

Labels in Gmail work like folders — but an email can have multiple labels at once.

How to create a label in Gmail (Gmail folders create)

  1. In the left sidebar, scroll down and click + Create new label.
  2. Type the label name and click Create.

How to delete a label in Gmail

  1. Hover over the label in the sidebar → click the three-dot menu (⋮).
  2. Select Remove label.
  3. Confirm. Note: Deleting a label does not delete the emails inside it — they remain in All Mail.

How to remove a label from an email

Open the email, then click the label tag next to the subject line and select Remove. Or, from your inbox, click the checkbox next to the email → click the Labels icon → uncheck the label.

How to Create Folders in Gmail

Gmail doesn't use traditional folders — it uses Labels instead, which are functionally equivalent (and more flexible). Follow the label creation steps above to create what most users think of as folders.

To make a label appear as a folder in the sidebar: hover over it → ⋮ → Edit → check "Show in label list".

You can also nest labels (sub-folders): when creating a label, check "Nest label under:" and select a parent label.

How to Create a Mailing List / Email Group in Gmail

Gmail uses Google Contacts to create mailing lists (called "Contact Labels" or groups).

How to create an email group in Gmail

  1. Go to contacts.google.com.
  2. Select the contacts you want in your group using the checkboxes.
  3. Click Manage labels (🏷️) → Create label and name your group.
  4. Click Apply.

How to use the group in Gmail

When composing an email, type the group label name in the To field. Gmail will auto-suggest it, and selecting it adds all contacts in the group at once.

How to Unblock an Email Address / Sender on Gmail

  1. Go to Settings → See all settings → Filters and Blocked Addresses.
  2. Scroll to the Blocked addresses section.
  3. Find the sender you want to unblock → click Unblock.

Alternatively, open any email from that sender → click the three-dot menu (⋮) at the top-right → select Unblock [sender name].

How to Sign Out of Gmail on iPhone

These steps apply to the Gmail app on iOS:

  1. Open the Gmail app and tap your profile picture (top-right).
  2. Tap Manage accounts on this device.
  3. Tap the account you want to sign out of → Remove from this device.

This removes the account from the Gmail app only — it does not delete the account or sign you out of other Google services like Safari or Chrome. To fully sign out of a Google account on iPhone, go to Settings → [your name] → [scroll down to Google account] → Sign Out.

What Does "Queued" Mean in Gmail?

When an email shows as Queued in Gmail (usually in the Outbox or Drafts), it means the email is waiting to be sent but hasn't been delivered yet. This usually happens because:

  • Your device is offline or has a poor internet connection.
  • The Gmail app is in the background and waiting to sync.
  • There's a temporary server issue on Google's end.

Fix: Check your internet connection, open the Gmail app, and pull down to refresh. The queued email should send automatically once connectivity is restored. If it stays queued, try opening the email and resending manually.

Gmail Keyboard Shortcuts

First, make sure shortcuts are enabled: Settings → See all settings → General → Keyboard shortcuts → On → Save.

The most useful Gmail shortcuts:

Shortcut Action
CCompose new email
EArchive selected email
#Delete selected email
RReply
AReply All
FForward
Shift + UMark as unread
Shift + IMark as read
*ASelect all conversations
G + IGo to Inbox
?Show all shortcuts

Gmail File Size & Attachment Limits

Gmail enforces the following size limits:

  • Maximum attachment size (sending): 25 MB per email.
  • Maximum attachment size (receiving): 50 MB.
  • If your file exceeds 25 MB, Gmail automatically uploads it to Google Drive and inserts a share link instead.

Need to send large files regularly? Use Google Drive, Dropbox, or WeTransfer links. Or, if you're receiving files from untrusted sources, use a disposable email address to avoid exposing your real Gmail to potential malware attachments.

Gmail Read Confirmation (Read Receipts)

Standard Gmail (free personal accounts) does not support read receipts for receiving or sending.

Gmail read receipts are available for: Google Workspace (business/paid) accounts only.

How to request a read receipt (Workspace)

  1. Compose an email.
  2. Click the three-dot menu (⋮) in the compose window → Request read receipt.
  3. Send the email. You'll get a notification when the recipient opens it (they can choose to decline sending the receipt).

For personal Gmail accounts, third-party tools like Mailtrack or Streak can add read receipt functionality.

Gmail SMTP Configuration

Use these settings to send email through Gmail via any mail client or app:

Setting Value
SMTP Serversmtp.gmail.com
Port (TLS)587
Port (SSL)465
AuthenticationYes (required)
UsernameYour full Gmail address
PasswordApp Password (not your Gmail password — see below)

Important: Google requires an App Password (not your account password) for third-party SMTP access. Enable 2-Step Verification first, then go to Google Account → Security → App Passwords to generate one.

How to See Your Gmail Password

Gmail does not show your password anywhere inside the Gmail interface for security reasons. However, you can find it in your browser's saved passwords:

Chrome

  1. Go to chrome://password-manager/passwords.
  2. Search for "google" or "gmail".
  3. Click the eye icon to reveal the saved password (you may need to authenticate with your device PIN/biometrics).

Reset your password

If you've forgotten it: go to accounts.google.com/signin/recovery and follow the recovery steps.

How to Recover a Lost Gmail Account

  1. Go to accounts.google.com/signin/recovery.
  2. Enter your Gmail address and click Next.
  3. Try any password you remember, or click "Try another way".
  4. Google will offer recovery options: email to your backup address, SMS to your recovery phone, or answering security questions.
  5. Once recovered, update your recovery info and enable 2-Step Verification immediately.

Tip: Keep a recovery email address set up at all times. A good option is using a secondary or even a temporary email address for low-stakes account notifications while keeping your main Gmail recovery address personal.

Gmail Account Security — Phishing, Ransomware & Staying Safe

Gmail users targeted by AI-powered phishing attacks

In 2024–2025, security researchers documented increasingly sophisticated phishing campaigns targeting Gmail users. Attackers used AI to generate convincing fake emails mimicking Google support, complete with believable sender addresses and urgent language. The goal: steal account credentials or install malware.

How to protect yourself:

  • Enable 2-Step Verification on your Google Account.
  • Never click links in unexpected "account security" emails — go directly to myaccount.google.com instead.
  • Check the actual sender address, not just the display name.
  • Use a privacy-focused email strategy — use your real Gmail only for trusted contacts and services.

Medusa Ransomware — FBI Warning for Gmail Accounts

The FBI issued warnings in 2025 about the Medusa ransomware gang specifically targeting Gmail and other email accounts to gain access to business networks. Medusa typically enters via phishing emails or stolen credentials.

Key precautions:

  • Don't reuse passwords across services.
  • Enable passkeys or hardware security keys (strongest 2FA option).
  • Check Google Account → Security → Recent security activity regularly for suspicious logins.
  • For any account you're not sure about protecting, consider using a throwaway email address for sign-ups instead of your Gmail.

Gmail accounts security upgrade

Google has been rolling out automatic security upgrades including passkey support, enhanced safe browsing, and AI-powered spam detection. To check your security status: Google Account → Security → Security Checkup.

Why Is Gmail Not Receiving Emails?

If your Gmail is not receiving emails, check these common causes:

  1. Inbox is full: Google accounts have 15 GB of free storage shared across Gmail, Drive, and Photos. If you're over the limit, emails will bounce. Check your storage at one.google.com/storage and delete large files or emails.
  2. Filters are auto-deleting or misdirecting emails: Go to Settings → Filters and Blocked Addresses and review your active filters.
  3. Sender is blocked: Check your blocked senders list in Settings → Filters and Blocked Addresses.
  4. Gmail not working on iPhone: Force-close the app, check your internet connection, and verify the account is still connected: Settings → Mail → Accounts.
  5. NordVPN or other VPN blocking Gmail: Some VPN configurations interfere with Gmail sync. Try disabling the VPN temporarily to test.

How to Mark All Gmail Emails as Read

  1. In Gmail, search for is:unread in the search bar.
  2. Click the select all checkbox at the top-left.
  3. Click "Select all conversations that match this search".
  4. Click the More (⋮) button → Mark as read.

This marks every unread email in your Gmail account as read in one shot.

How to Change the Subject Line in Gmail

You cannot edit the original subject line of a received email — but you can change it when replying:

  1. Click Reply on the email.
  2. Click the three-dot menu (⋮) in the compose window → Edit subject.
  3. Change the subject and click send. This creates a new thread with the updated subject.

To change the subject on an email you're composing, simply click the subject line field and type a new one.

This Phone Number Cannot Be Used for Verification — Gmail Fix

This error appears when creating a new Gmail account if:

  • Your phone number has already been used to verify too many Google accounts (the limit is a few accounts per number).
  • Your number is flagged as a VoIP, prepaid, or disposable number.
  • You're using a number from a region Google restricts for verification.

Fixes:

  • Try a different phone number (e.g., a family member's).
  • Use a different device or browser.
  • Skip phone verification if Google offers an alternative (backup email, etc.).
  • Wait a few days and try again — Google sometimes lifts the restriction.

If you're creating multiple accounts for testing or temporary purposes, consider using 10 Minute Mail for throwaway inboxes instead of creating multiple Gmail accounts — it's faster and doesn't require a phone number at all.

How Many Gmail Accounts Can You Have?

Google does not publish a hard limit on the number of Gmail accounts you can create per person. In practice, you can create and use multiple Gmail accounts as long as you have a valid phone number for each (Google may require phone verification for new accounts, and limits how many accounts can be verified per number).

Most users can maintain 4–5 Gmail accounts verified under the same phone number without issues. Beyond that, you'll typically need a different number.

A smarter alternative for multiple inboxes: Instead of managing several Gmail accounts, use a disposable email generator with a real inbox for secondary use cases — sign-ups, trials, forums — and keep a single clean Gmail for important contacts.

Final Thoughts: Keep Your Real Gmail Clean

Most of these Gmail headaches — cluttered inboxes, spam, bulk deletions — stem from using your primary email address everywhere. A simple habit change makes a big difference: use a fake email address for anything that isn't a trusted contact or service.

At TempMail.im, you get an instant disposable inbox with no sign-up required. Great for:

  • Avoiding marketing emails and newsletters
  • Testing web apps and sign-up flows
  • One-time verifications and download gates
  • Keeping your Gmail inbox clean and uncompromised

Browse our blog for more email privacy tips, or read our 2026 privacy tools guide for a full breakdown of the best tools to protect your digital life.

Have a question not covered here? Contact us and we'll add it to the guide.

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