[5+ Solutions] Gmail Queued and Failed Delivery Error Message in Android

You can resolve the Gmail queued and failed delivery error with basic troubleshooting steps like clearing app cache, adjusting the sync setting, relink Google account, and making sure that background data is enabled.

Recently I had Gmail Queued issue with my Gmail App for Android when sending out emails with attachment especially the PDF files. Though I was connected with hi-speed internet I was not able to send an email and most of the time it gets stuck in outbox folder with Queued error message.

The email would get stuck in the Outbox for hours, and later it would change the status to “Failed”. Though my Outbox folder was completely empty, and there were no emails, it would still show as in the Queue error message.

Gmail Queued mail with attachment

I went ahead and tried some troubleshooting steps to resolve the Gmail Queued error message and hence sharing below the same. I believe this will somehow help you in resolving if you ever encountered it again.

First and foremost thing that you need to make sure that only Gmail App is having an issue. And you’re able to send the emails with attachment via Gmail Inbox web interface. This will help in judging whether Gmail is down or not.

In-case, if you face the same issue on the web as well then these tips won’t resolve the issue as this could be an issue from Gmail side.

Before you start off make sure:

  • You’re running on the latest version of Gmail app and downloaded from Play Store only
  • You’re not sending the attachment over the Gmail send_limit of 50MB file size
  • Have a stable network connection to your phone; either WiFi or mobile data

These pre-requisites actually help in initial troubleshooting and making sure that we aren’t missing anything important from our end as part of the configuration.

Clear App’s cache and data from settings

You can simply clear Gmail app cache and stored data from Phone Settings. Make sure that you’ve completely closed the Gmail app from task manager.

  1. Open Phone Settings
  2. Select Application Manager
  3. Swipe to “All” apps
  4. Choose Gmail from available apps
  5. Hit Clear cache and data button

This will delete all the temporary cached file in the Android phone.

Try to enable and disable Gmail Sync temporarily

You should try enabling and disabling the Sync within your Android phone to make sure that functionality is working fine.

  1. Go to Settings option
  2. Select Accounts
  3. Choose Google Account
  4. Select the Email Account
  5. Uncheck Gmail and restart your phone
  6. After reboot, again enable the Checkbox

Try this for multiple times in brief intervals in order to have hard sync in Gmail app.

Remove Gmail Account and setup again

This is quite a cumbersome process. You need to completely remove the Google Account login from your phone and then log in again.

  1. Go to Settings
  2. Select Accounts options from the menu
  3. Choose Google Account from the list and
  4. Select the Email Account within
  5. Tap to Remove association completely for a while
  6. Clear cache and data from the Gmail app
  7. Reboot your phone and
  8. Reconfigure the Gmail Account in your phone

This will help in downloading the emails and set up again from scratch.

Decrease the days to sync option

Generally, whenever you configure the phone with Gmail, it only retrieves the emails for a few days. As and when you start using the Gmail App, it syncs with old emails as well. However, this will increase the cache and storage size for the app.

Hence, it’s a good idea to limit the sync to a maximum of 30 days. If there are any emails that are over 3days period, the Gmail app will automatically purge from the storage.

  1. Open Gmail App
  2. Go to Settings
  3. Select your account
  4. Tap on Days to sync
  5. Try limiting it to 30 days or even less

Clear the storage and cache once you change the settings so that data will be resynced.

Make sure to keep background data enabled

By default, the background data is enabled. However, if you mistakenly disabled the background data, then keep the option enabled.

  1. Go to Phone Settings
  2. Tap to Data Usage option
  3. Scroll down to “Gmail” App
  4. Make sure Restrict background data is not selected

Having said that, make sure you’re connected to a stable network, and there is no intermittent data network issue with your ISP or WiFi.

Do you have enough Storage Space?

One of the possibility to queue the email in the outbox is not having enough disk space on your mobile phone. Make sure to declutter all the useless files by deleting them and make enough room for new emails to send out.

Sending out an email will actually store the data in Gmail app storage, hence it’s necessary to have space in mobile to accommodate any incoming or outgoing emails.

What worked for you in resolving Gmail Queued?

When I removed my Gmail account from the Android phone and later reconfigured – it worked perfectly! I checked the Outbox folder to see if the mail with attachment still lying in the folder, but later found the mail got through the mailbox and available in Sent folder.

If your issue with Gmail Queued error got solved, then please feel free to share how you were able to overcome the error.

If the issue still hasn’t fixed, then you can consider sign up a Hotmail account for free and start sending email without any issues. Also, there have been few reported issue of ‘Google servers are temporarily overloaded‘.

If you've any thoughts on [5+ Solutions] Gmail Queued and Failed Delivery Error Message in Android, then feel free to drop in below comment box. Also, please subscribe to our restoreBin YouTube channel for amazing videos tips. Cheers!

Kushal Azza
Fond of latest technologies and gadgets. I'm a digital dev and analytics consultant. Also, the geek behind this blog!

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1 Response

  1. Flavia says:

    For me it was the fact that I use Gmail app also for non Gmail account. My password was changed, but since Gmail app didn’t say anything about this, I forgot to update the password in server settings.

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