Gmail problem? Start here.

Last reviewed: September 20, 2026 · Markdown version

Most Gmail trouble comes down to one of two things: your storage is full, or your inbox is. These pages answer both kinds honestly — including the ones where our own app is not the fix. We make a Gmail cleaner; a full Google account is often full of photos, not email, and we would rather tell you that than sell you something that can't work.

First, diagnose

• How to clean up Gmail — Three passes, in order: stop the inflow, sweep the backlog with search, then empty Trash if storage is the reason.
• Is it your phone or your Google account that's full? — Phone storage and Google account storage are two different things, and the fix for one does nothing for the other.
• What is data hoarding? — Keeping files and mail you will never open again, because deleting feels riskier than keeping.
• How many emails can I send at once in Gmail? — Google's published limits for a personal account, what happens when you cross one, and why the same question about deleting in bulk has a completely….
• Are Gmail attachments secure? — What Google actually does to an attachment, what encryption in transit does and does not cover, and the honest limits — including the one most people….
• What is information overload? — A term older than email that describes a real limit: more input than you can turn into decisions.
• How many emails do you get a day? — Why a quoted average tells you little about your own inbox, what to check before trusting one, and the three searches that give you your own figure….
• Why is Gmail putting mail in Important? — Important is a marker Gmail sets from your own habits, not a folder mail moves into.
• Why do I have to delete emails multiple times? — Deleted Gmail that comes back, a count that barely moves, a storage figure that does not change — the six usual causes, and which one you have.
• How many emails can an iPhone hold? — Apple publishes no message limit for Mail on iPhone.
• How do I know how many emails I have in Gmail? — The counter above your Gmail list, why it may be counting conversations, and the searches that count one slice of your mail at a time.
• How many emails does the average person have? — No current, representative figure is published.
• How many email accounts can I have on iPhone? — Apple's Mail guides give no maximum; they say you can add accounts at any time.
• Does Gmail block certain emails? — Yes.
• Does Gmail scan for viruses? — Yes, every attachment sent and received.
• How many emails can I schedule in Gmail? — Google's limit is 100 scheduled emails at a time.
• Why are emails missing from my Gmail inbox? — Usually archived, filtered, in Spam or Trash, or deleted from another device.
• Why do my Gmail emails disappear after I read them? — Usually an inbox layout that files read mail lower down, or another mail app set to archive or delete Gmail's copy once it downloads it. How to tell which.
• Why is my Gmail Primary tab empty? — Gmail is filing your mail in other tabs, or archiving it before it reaches the inbox.
• What are high priority emails in Gmail? — In Gmail, high priority is Gmail's own guess about what matters to you, not a flag a sender sets.
• What is clutter in email? — Two meanings: Outlook's Clutter folder, which Microsoft calls replaced by Focused Inbox but never set a final end date for, and everyday inbox clutter.
• How do I cancel a sent email in Gmail? — Tap Undo in the few seconds after sending.
• How do I find archived emails in Gmail? — Archived Gmail sits under All mail, and the search in:archive lists only archived mail.
• What is All Mail in Gmail? — All Mail is the view of your whole Gmail mailbox, archived mail included.
• Why do deleted emails keep coming back in Gmail? — Usually the email was archived, not deleted, by a swipe, a mail program or a reply.
• Can I search the Trash in Gmail? — Yes, but an ordinary Gmail search skips Trash.
• Can I make All Mail the default view in Gmail? — Gmail opens on the inbox, and Google documents no setting to change that.
• What is the Promotions tab in Gmail? — Gmail's tab for deals and offers.
• How does Priority Inbox work in Gmail? — Priority Inbox splits Gmail into sections you choose, led by Important and unread.
• Why is Gmail only showing old emails? — Either new mail is not reaching this device, or your inbox layout puts older messages first.
• How do I mark an email address as important in Gmail? — A filter on the sender's address with the mark-as-important action makes Gmail flag every message from them.
• Why is Gmail archiving my emails automatically? — Gmail's help never says it archives mail on its own.
• What are starred emails in Gmail, and how do I find them? — A star is Gmail's bookmark for mail you want to come back to.
• Why does Gmail mark my emails as read automatically? — Gmail Help documents no timer that marks mail read.
• Why is Gmail search not finding my emails? — Gmail search skips Spam and Trash, can sort by relevance, shows related results when nothing matches, and offline sees only synced mail.
• How do I turn off conversation view in Gmail? — One setting per device: See all settings on a computer, per account on Android, Inbox customizations on iPhone.

Google account storage (the shared 15 GB)

• Google storage full — what actually works — Your Google account's storage (up to 15 GB) is shared by Gmail, Drive, and Photos.
• "Your Gmail storage is X% full" — what that warning really means — Google's warning names Gmail, but the number is your shared account storage — and on some accounts most of it is photos.
• Gmail can't receive emails? — A full Google account bounces incoming mail back to the sender.
• Does deleting emails actually free up storage? — Yes — but not right away.
• How do I find large emails in Gmail? — Three search operators find the heavy messages in seconds — Google's own storage page starts there — and one rule about Trash decides whether….
• How often does Gmail empty the Trash? — Gmail clears Trash 30 days after deletion, and deleted mail keeps counting against your storage until it does.
• Where are attachments in Gmail? — There is no attachments folder — there is a search.
• What takes up space in Gmail? — The quota is not Gmail's — it is shared with Drive and Photos.
• Is there a limit on Gmail emails? — Four different limits get confused with each other — storage, sending, attachments and labels.
• Why do my Gmail attachments keep failing? — Six causes, in the order worth checking — the 25 MB ceiling and what Gmail does when you pass it, the blocked-extension list, the virus scanner, and….
• What is Gmail's maximum attachment size? — 25 MB to send from a personal account, a different set of numbers for work accounts, and the Drive link Gmail swaps in when you go over.
• Should I buy Google storage? — Is Google One worth it?.
• Can you share Google One storage? — Google One family sharing — who can join, what the family sees and never sees, and what happens to a member's Gmail if the plan stops.
• How long does Gmail keep old emails? — Gmail keeps mail you have not deleted for as long as the account stays in use and under quota.
• How do I cancel my Google One subscription? — Cancel where you pay: Google One on the web or Android, the App Store on iPhone.
• Can I get 100 GB free on Google Drive? — Not permanently.
• How do I save Gmail attachments on iPhone? — In the Gmail app, photos save to your phone, Drive or Google Photos; PDFs and other files save to Drive.
• How do I add more space to Gmail? — Gmail has no storage of its own to top up.
• How many GB does Gmail give you? — A personal Google account gets up to 15 GB, shared by Gmail, Drive and Photos, not 15 GB for mail.
• Why aren't my attachments showing up in Gmail? — A received attachment may have come as a Drive link, been blocked by your network or the virus scanner, or failed in the browser.
• Can I recover emails after emptying the Trash in Gmail? — Usually not; Google calls a permanent delete final.
• How do I empty the Gmail Trash all at once? — Open Trash and use Empty Trash now: in a banner above the list on a computer, at the top in the Android and iPhone apps.
• Can I delete an attachment but keep the email in Gmail? — Gmail has no button for removing a file from an email you received.
• What is the Google One storage manager, and how do I open it? — Google's cleanup screen for the 15 GB shared by Gmail, Drive and Photos.
• Why is my Google storage still full after deleting? — Three Trash folders, a 48–72 hour delay, and files that never counted.
• What is Google One, and do I need it for Gmail? — Google One is Google's paid membership for more account storage.
• How do I stop Google backup? — There are three separate switches: Google Photos backup, your Android phone's Backup by Google One, and Drive for desktop.
• Is the "your Gmail storage is full" email real? — It may be, but do not use its link to find out.
• What happens when my Gmail storage is full? — New mail bounces back to the sender, Drive and Photos stop taking uploads, your old mail stays readable, and after two years over, content can be….

When it isn't email

• Google Photos is eating your storage — When Photos is what filled your Google storage: the free tools Google gives you — Storage saver conversion, the manage-storage review, and the 30-day….
• Google Drive is full — Drive lists your files largest-first, which often makes this the quickest Google storage cleanup: delete the few big files, empty Drive's own Trash,….
• Why is my Gmail not syncing automatically? — The causes Google's own sync troubleshooter lists, in the order worth checking — starting with the one people suspect last: a Google account at its….
• Why is the Gmail app so slow? — What Google's own troubleshooting says makes the Gmail app slow on a phone — and an honest note about which of these a mailbox cleanup can fix and….
• Why does Google Drive take up so much space on my iPhone? — The Drive app's size on an iPhone is what it keeps on the phone, not what is in your Drive.
• Why is my Gmail lagging in the browser? — When Gmail lags on a computer, Google's checklist starts with the browser, then labels, filters and page size.
• How do I remove a Gmail account from a phone? — Remove it on Android or iPhone, or sign out an old or lost phone remotely from your Google Account.
• Not getting emails after changing your Gmail password? — A Google password change signs mail apps out and cancels app passwords.
• Can I uninstall and reinstall the Gmail app? — Usually, and your mail survives it: it lives in your Google Account.
• How do I contact Google to recover my Gmail account? — Google takes no calls about a locked personal account; its recovery form is the route.
• How do I remove a recovery email from my Google Account? — Security & sign-in, Recovery email, then Delete next to the address.
• How do I sync Gmail with Apple Mail? — Add Gmail as a Google account on iPhone or in Mail on a Mac and sign in with Google.
• Why are my Gmail emails queued or delayed? — Google's help never defines "Queued".
• How do I make emails bigger in Gmail? — Zoom the page or raise Chrome's font size on a computer; raise the phone's font size for the apps.
• Can you have multiple Gmail accounts? — Yes.
• Why is the Gmail app taking up so much space on my phone? — The app stores synced mail and attachments on the handset.
• How do I delete a Gmail account? — Two different things: remove only Gmail and keep the Google Account, or delete the whole account.
• Does Google delete inactive Gmail accounts? — Yes, after two years without use anywhere across Google.
• How do I download all my Gmail? — Google Takeout exports your whole Gmail as an archive.
• How do I remove a Gmail account from my iPad? — An iPad can hold Gmail in Apple's Mail and in Google's apps, and removing it from one leaves the other.

Cleaning up

• How to mass delete emails in Gmail — Gmail can delete thousands of emails at once — the trick is the link in the notification that selects every matching conversation.
• How to delete all Promotions emails in Gmail — Delete Gmail's entire Promotions tab in four steps — category:promotions, select all matching, Delete.
• How to delete all emails from one sender — Search from:, select all conversations that match, Delete — every email from that sender moves to Trash.
• How to unsubscribe from emails in Gmail — Gmail's Unsubscribe button, the Manage subscriptions screen that lists every sender in one place, what Gmail does with mail that arrives after you….
• Is there a way to mass unsubscribe from emails? — No single button exists, and it cannot - each unsubscribe is a separate request to a separate sender.
• Is it OK to unsubscribe from emails? — Yes for mail you signed up for, no for mail you did not.
• What is Inbox Zero — Inbox Zero isn't about the number zero — it's about email no longer holding your attention.
• How can I organize my Gmail? — Labels give you the categories, filters apply them without you, and search finds the rest.
• Is there a way to stop spam emails? — No single switch stops unwanted email.
• What is the Gmail spam folder, and what does it actually do? — Where suspected spam goes, what putting mail there teaches Gmail, why good mail sometimes lands in it — and the retention claim you will see repeated….
• Does Gmail have a junk folder? — Yes, but Gmail calls it Spam. Where it sits on a computer, Android and iPhone, and why Outlook or Apple Mail may show you a folder called Junk instead.
• How do I permanently block a sender in Gmail? — What blocking actually does, what it does not do, and when a filter or an unsubscribe is the better tool — plus why a block on one address may not….
• How can I see everything I'm subscribed to by email? — Gmail's Manage subscriptions screen lists your active subscriptions in one place — where it has rolled out.
• How do I remove the Social tab in Gmail? — The tabs are a setting, not a feature you are stuck with — how to turn them off on a computer, iPhone and Android, what happens to the mail that was….
• How do I set up filters in Gmail? — What a Gmail filter can and cannot do according to Google's own help, how to build one from a search you have already checked, and why it is the….
• Does Gmail have rules like Outlook? — Yes, under another name: Gmail calls its rules filters. How they map onto Outlook rules, what Outlook offers that Gmail's page doesn't, and Gmail in Outlook.
• Can you have too many emails? — When a large inbox is genuinely a problem and when it is harmless — the three costs that are real, the one that is overrated, and what to do about….
• Email anxiety and digital hoarding — is it a real thing? — What researchers have actually published on digital hoarding, why a five-figure unread count is a poor measure of anything, and the practical bit:….
• How do I clear my unread emails on iPhone? — Two different jobs hide in that question — silencing the badge, and dealing with the mail.
• How do I add labels in Gmail? — Creating a label, applying it, nesting it, colouring it — and the two ceilings Google publishes: 5,000 labels and 100 custom colours.
• How do I use labels in Gmail? — Labels are not folders, and the difference is the whole skill.
• How do I manage email subscriptions on iPhone? — Gmail's Manage subscriptions screen on iPhone, what it actually does when you use it, the rollout caveat Google publishes, and what to do if your….
• What is an email manager? — A term that covers four different kinds of software.
• How do I get emails older than 12 months? — The operator that does it, why the unit letter matters, and how to act on ten years of archive without deleting something you needed.
• How do I use Google search operators in Gmail? — The Gmail operators worth memorising, the number rule Google warns about, and the reason a size search never finds the sender that is actually….
• How do I edit my Gmail labels? — Renaming, nesting, colouring and deleting labels — the exact steps, the 5,000 ceiling, and the one thing deleting a label does not do.
• How do I remove a label from an email in the Gmail iPhone app? — Touch and hold the email, tap More, then Change labels and untick it. What that does to the email, and how it differs from deleting the label itself.
• How do I download Gmail attachments in bulk? — Google's attachment-download help page documents no "download all" button.
• Can I delete emails by date in Gmail? — Deleting a date range or a whole year in Gmail with before: and after:, the boundary days Google does not define, and a check to run before you press….
• Should I archive or delete emails? — Archive keeps the email and its storage; delete starts a 30-day clock.
• What does Show in IMAP mean for Gmail labels? — Show in IMAP decides which Gmail labels Outlook or Apple Mail see as folders.
• How does an email subscription work? — How you end up on a mailing list, what subscribers means to a sender, the hidden unsubscribe header, and why leaving can take days.
• How many Hide My Email addresses can I have? — Apple states no limit on Hide My Email addresses.
• How do I forward a Gmail with its attachments? — Forward, Forward all, or Forward as attachment: what each does in Gmail, which work on a phone, and what Google's pages do not say about attachments.
• What is the best app to clean up Gmail on iPhone? — Google's free storage manager, Clean Email, Chuck, Cleanfox, InboxPlus and our own app, compared from each one's listing, with three questions to ask….
• How do I attach a file in Gmail on iPhone? — In the Gmail app, tap Compose, then Attach, and pick Photos, Camera, Files, Google Photos or Drive.
• How do I open attachments in Gmail on Android? — Open the email in the Gmail app and tap the attachment, or tap Download and open it from the Files app.
• How do I change which app opens Gmail attachments? — Gmail has no "open with" setting of its own; the phone or browser decides.
• Why do I keep getting emails from LinkedIn? — LinkedIn sends notification emails by category, invites to addresses not on your account, and member messages.
• What is a good Unroll.Me alternative? — What Unroll.Me does and how it is paid for, in its own words, what stays behind when you leave, and four alternatives with their limits.
• How do I delete a mailbox on iPhone? — Deleting a mailbox in iPhone Mail erases the messages in it from your account.
• How do I resubscribe to an email I unsubscribed from in Gmail? — Gmail has no resubscribe button.
• How do I change my Gmail inbox type? — Gmail's six inbox types, what each one does to your inbox, where the setting is on a computer, Android and iPhone, and the two limits worth knowing.
• What is a good Clean Email alternative for Gmail? — What Clean Email does well and where it keeps its index, from its own pages, and when a Gmail-only app that works on the phone is the better fit.
• Is there a Mailstrom alternative for cleaning Gmail on your phone? — Mailstrom is a browser tool for bulk inbox cleanup.
• How do I make emails skip the inbox in Gmail? — Build a filter and tick "Skip the Inbox (Archive it)".
• How do I unsubscribe from emails on Android? — In the Gmail app on Android: the Unsubscribe button, the Manage subscriptions list, the setting that suggests unsubscribes, and what to do with no….
• Can I bounce unwanted emails back to the sender in Gmail? — Gmail's help covers blocking, reporting spam and filters, not a bounce-back button.
• Why is unsubscribing not working in Gmail? — It can take days, it may cover one list only, and the button appears only for senders that pass Google's checks.
• How do I manage email overload at work? — The triage tools Google documents for work Gmail (labels, Priority Inbox, snooze, mute, Send & Archive) and Outlook's Focused Inbox, set up in one….
• Can you mark all Gmail as read? — Yes.
• What are promotional emails? — Mail whose main job is to sell.
• What is snooze in Gmail? — Snooze takes an email out of your Gmail inbox and brings it back at a time you choose.
• How do I clear all Gmail notifications? — Your phone clears the alerts already on screen; Gmail's own settings decide how many more arrive.
• Can I create new categories in Gmail? — No.
• What happens when you mute a conversation in Gmail? — New replies to a muted Gmail thread skip your inbox and go to the archive, with three exceptions.
• Can Gmail delete emails automatically? — In part.
• How do I see only unread emails in Gmail? — Search is:unread, tap the Is unread chip, or switch the inbox to Unread first.
• Why do emails go to Promotions in Gmail? — Gmail sorts mail into tabs itself and does not publish the signals.
• How do I delete all emails in the Gmail app? — The Gmail app on Android and iPhone selects 50 messages at a time.
• How do I see, edit or delete a Gmail filter? — Every Gmail filter sits on one settings tab.
• How do I stop getting so many emails from Amazon? — Amazon's own switches for marketing and subscription email, what its help pages leave out about order emails, and the Gmail tools to use afterwards.
• Can I use wildcards in Gmail filters? — Gmail's operator list has no wildcard, but one Google page puts an asterisk in a filter.
• Can I delete my Gmail search history? — Yes.
• How do I sort my emails by sender in Gmail? — Gmail has no sort-by-sender button.
• How do I send emails from one person straight to a folder in Gmail? — Make a label, then a filter on that address that applies it and skips the inbox. The steps on a computer, the iPhone app's version, and what Android lacks.
• How do I move lots of emails to a label in Gmail at once? — Search, tick the Select box, take the select-all link, then use Labels.
• Can I create folders in Gmail on iPhone? — Yes, as labels: the iPhone Gmail app creates them from its menu and can even label new mail automatically.
• How do I stop Gmail notifications (or only get the important ones)? — Set Email notifications to None, or to High priority only, in each Gmail account.
• How do I save an email as a PDF in Gmail? — Gmail has no Save as PDF button.
• How do I move emails from one Gmail account to another? — Turn on POP in the old account, then run Import mail and contacts from the new one.
• How do I mark an email as unread in Gmail? — Tick the message and click Mark as unread on a computer, or open it and tap Unread in the app.
• Can I block a whole domain in Gmail? — Gmail's Block button works on one sender at a time.
• How do I unsubscribe from a Substack newsletter? — Use the Unsubscribe link at the foot of any Substack email, or your Substack settings.
• Why am I getting so many phishing emails? — Addresses get collected, shared and guessed, and a sudden flood can hide an attack.
• Can I delete emails I have already sent in Gmail? — Delete your copy from Sent and it goes to Trash for 30 days.
• How do I delete all my drafts in Gmail? — Open the Drafts label, select every draft and delete.
• How do I unblock a sender in Gmail? — Open one of their emails and choose Unblock, or use the blocked list under Filters and Blocked Addresses.
• How do I search Gmail for emails from a specific date? — Type after: and before: around the day you want, or use the date chip or Date within.
• How do I change what swiping does in the Gmail app? — Android: General settings, Swipe actions.
• How do I stop Gmail suggesting old email addresses? — Delete the address from Other contacts in Google Contacts, then set Gmail's Create contacts for auto-complete to I'll add contacts myself.
• How does Gmail decide an email is spam? — Google does not publish its filter, but it shows its reasons: a warning on each Spam message, your own reports, and rules senders must meet.
• How do I mute Google Chat notifications in Gmail? — Untick Chat notifications in the Gmail app's account settings, or Allow chat notifications on a computer.

Take 10 seconds: the Email Hoarder Calculator — your inbox's storage damage and your official hoarder rank.

The Gmail mechanics here are grounded in Google's own documentation and in what our app can verify against the Gmail API. If an answer looks wrong or out of date, tell us: support@adinandemail.com.