We're sorry you're having problems with the Mail and Calendar apps for Windows 10. To fix the issue, please try each of the following solutions in order.
Before you begin
Before you begin, make sure that your device has the latest operating system and app updates. Try the general troubleshooting solutions in Troubleshooting Mail and Calendar apps for Windows 10. If that doesn't solve your issue, try the solutions below.
Check the connectivity to your email server
If you're experiencing issues when sending or receiving email, make sure that you can access your email server.
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Check that your device is connected to the internet: To send or receive email, you'll need internet access. Make sure your device is connected to the internet.
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Try sending email via the web: Many email providers let you access your email via a website. Sign in to your email account via the website and confirm that you can send and receive email there. If you can't, there might be an issue with your email server. Contact your email provider for support.
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Try sending email from another app or device: If you have another email app or another computer or mobile device, try sending and receiving email from that app or device. If you can't, there might be an issue with your email server. Contact your email provider for support.
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Check with your email provider about the status of your email server: If your email provider doesn't have a website and you can't set up your email on another app or device, contact your email provider to see if your email server is accessible.
Check your security software
Firewalls and antivirus software might prevent you from syncing your email and calendar events. Although we don't recommend permanently turning off security software, temporarily turning off the software will let you determine if it is preventing you from syncing your email or calendar events.
Note:If your device is connected to a network, your network policy settings might prevent you from completing these steps. For more information, contact your administrator.
Turn off Windows Defender Security Center
Windows Defender Security Center is free security software that's included with Windows 10. If you haven't installed alternative security software, you should temporarily turn off Windows Defender Security Center.
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Go to Start
and open Windows Defender Security Center. -
Select Fire and network protection.
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Choose a network profile and turn off Windows Firewall for that profile. Repeat this step for each profile.
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If you can now sync your email, you'll need to allow the Mail and Calendar apps through the firewall. Follow the steps below.
and open Windows Defender Security Center.IMPORTANT: Make sure to repeat the steps above reenable the firewall for each network profile.
Allow Mail and Calendar apps through Windows Firewall
If you can sync your email when the firewall is turned off, you'll need to allow the Mail and Calendar apps through the firewall.
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Go to Start
and open Windows Defender Security Center.(Video) Fix Mail App not Syncing in Windows 10 -
Select Fire and network protection > Allow an app through firewall > Change settings.
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In the list of allowed apps and features, select the check box next to Mail and Calendar, and select the check boxes in the Private and Public columns.
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Select OK.
Turn off third-party security software
Third-party firewalls or antivirus software might prevent you from syncing your email and calendar events. Although we don't recommend permanently turning off security software, temporarily turning off the software will let you determine if it is preventing you from syncing your email or calendar events. Check the software documentation to learn how to temporarily turn it off.
WARNING: If you disable your antivirus software, don't open any email attachments or click any links in messages from people you don't know.
Remove your account and add it again
In some cases, you can resolve sync issues by removing your account from the Mail and Calendar apps and adding it again.
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Go to Start
and open Mail. -
At the bottom of the left navigation pane, select
. -
Select Manage Accounts.
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Select the account your want to remove, and select Delete account from this device.
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Add the account again. For more information, see Set up email in Mail for Windows 10.
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Note:There are special instructions for Yahoo! Mail, iCloud, and QQ accounts. If you're having problems with one of these accounts, see Special instructions for other accounts.
Remove your account and add it again using advanced setup
If you still can't sync your email after removing your account and adding it again, you might need to add the account using advanced setup. For more information, see Add an account using advanced setup.
Check your advanced mailbox settings
If you have a Google, Yahoo! Mail, iCloud, IMAP, or POP3 account, check the settings in the advanced mailbox settings to make sure they're configured to your email provider's specification. If you're using an Outlook.com, Microsoft 365, or Exchange account, you won't have advanced mailbox settings unless the account was set up using advanced setup.
Note:There are special instructions for Yahoo! Mail, iCloud, and QQ accounts. If you're having problems with one of these accounts, see Special instructions for other accounts.
Collect the required information from your email provider
Before checking your advanced settings, you'll need to look on your email provider's website, or contact your email provider, to determine the correct server settings. You'll need the following information:
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Incoming and outgoing email server address
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Incoming and outgoing email server ports
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Does the outgoing server require authentication?
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Is the same username and password used for sending email?
If the username and password are different, make sure you have the correct username and password.
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Does the incoming server require SSL?
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Does the outgoing server require SSL?
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Contacts server (if applicable)
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Calendar server (if applicable)
Check advanced mailbox settings
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Go to Start
and open Mail. -
At the bottom of the left navigation pane, select
. -
Select Manage Accounts and select your email account.
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Select Change mailbox sync settings > Advanced mailbox settings.
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Confirm that your incoming and outgoing email server addresses and ports are correct.
(Video) How to Fix Windows 10 Mail and Calendar App -
Unselect the check box next to Outgoing server requires authentication if your provider doesn't require authentication.
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Unselect the check box next to Use the same name and password for sending email if your provider requires separate authentication for sending email, and provide the outgoing server username and password.
Notes:If applicable, change the following settings as well:
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Select the check box next to Require SSL for incoming email if your provider requires SSL for incoming email.
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Select the check box next to Require SSL for outgoing email if your provider requires SSL for outgoing email.
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Confirm that your Contacts server and Calendar server addresses are correct.
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If you're using an Exchange account that requires advanced settings, you'll need to remove the account and add it again using advanced settings. To add the account using advanced settings, see Add an account using advanced setup.
Check your privacy settings
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Go to Start
and select Settings > Privacy > Email. -
Make sure that Let apps access and send email is set to On.
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Select Calendar.
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Make sure that Let apps access my calendar is set to On.
Check if two-factor authentication is turned on for your account
Two-factor authentication helps protect your account by making it more difficult for someone else to sign in. It verifies your identity using your password and a contact method (also known as security info).
The Mail and Calendar apps for Windows 10 don't support two-factor authentication. If two-factor authentication is turned on for your account, you'll need to create an app password for that account. An app password is used instead of your normal account password for apps that don't support two-factor authentication.
Check with your email provider for instructions about how to create an app password for your email account.
You receive an error message when syncing email
Sometimes an error appears in the Mail and Calendar apps when the apps try to sync new email or calendar events. Here are some solutions for the most common errors.
Your account settings are out of date
The most common cause of an out-of-date account is an incorrect password. In the notification bar at the top of the app, select Fix account. If your password is incorrect, you'll see a message asking you to update your password. Enter the new password and select Done.
Tip:If you want to change the password for your account with your email provider—for example, Gmail or iCloud—you'll need to visit the website for your email provider. See Change your password in Mail for Windows 10 for more information.
If your password isn't the problem, you might have a certificate error. If so, you'll see a message that says, "There is a problem with the server's security certificate. The security certificate is not from a trusted certifying authority."
This error often happens when you don't use SSL to secure your email account. To fix this error, follow the steps below:
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At the bottom of the left navigation pane, select
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Select Manage Accounts and select your email account.
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Select Change mailbox sync settings > Advanced mailbox settings.
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Confirm that your incoming and outgoing email server addresses and ports are correct.
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Select the check box for Require SSL for incoming email and Require SSL for outgoing email and then select Done > Save.
This device doesn't meet the security requirements set by your email administrator
If you receive this error, see the article about device security requirements for troubleshooting steps.
0x80072726
An error 0x80072726 might be due to third-party firewall or antivirus software. Although we don't recommend permanently turning off security software, you can go to the software manufacturer's website to see if they have workaround steps, or you can temporarily turn off the software to see if that fixes the issue. If so, contact the manufacturer's technical support to find a way to access your email without disabling their software.
Warning:If you disable your antivirus software, don't open any email attachments or click any links in messages from people you don't know.
Still need help?
Send us your feedback
We value your opinion. If there's a feature you think is missing from the Mail and Calendar apps, or if a feature in isn't working properly, you canprovide feedback directly to the Mail and Calendar team.
See Also
Set up email in Mail for Windows 10
FAQs
Why is my Windows Mail calendar not syncing? ›
Check your privacy settings
Go to Start and select Settings > Privacy > Email. Make sure that Let apps access and send email is set to On. Select Calendar. Make sure that Let apps access my calendar is set to On.
The application might be outdated. Many outdated apps have problems syncing and sending or receiving emails. With that said, you should also make sure that you are running an updated version of the Windows operating system. The synchronization settings in the Mail app are configured incorrectly.
How do I fix Outlook calendar sync issues? ›- In the Outlook app, go to Settings. > Tap the account that is not syncing > Tap Reset Account. Check to see if your account is syncing.
- Still not working? Delete and re-add your email account: From Settings.
Check Gmail sync settings
Open the Gmail app . Settings. Tap your account. Make sure the box next to "Sync Gmail" is checked.
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Step One:
- Scroll right to the applications menu.
- Scroll down to “email+accounts”
- Tap “add an account”
- Enter your Gmail address and password.
- Calendars sync by default, but you can control this by tapping on the account name after it's had a chance to sync.
Reasons for Outlook Email Not Auto-Updating
Poor network connection. Faulty or incompatible add-ins. Wrong email settings. Conflict with other apps.
- Open Settings.
- Click on Apps.
- Click on Apps & features.
- Select the Mail and Calendar app from the list.
- Click the Advanced options link. Mail app Advanced options link.
- Click the Reset button. ...
- Click the Reset button again to confirm.
Very often mailbox synchronization issues with Outlook are due to . ost file corruption and can be resolved simply by renaming the . ost file or by creating a new Outlook profile, which will create a new Offline Outlook Data File (. ost) for Outlook to cache data.
How do I force Windows 10 Mail app to sync? ›Click the Sync button in the Mail app, at the top of your message list, to force the app to sync. Customize your sync settings in the Mail app (Settings > Manage Accounts > select the desired account > Change mailbox sync settings).
How do I fix sync settings in Windows 10? ›To find Sync settings, select Start , then select Settings > Accounts > Sync your settings . Choose from settings such as language preferences, passwords, and color themes.
How do I force Windows 10 to sync? ›
Open the Settings app on your device. Select Accounts > Work Access. Select your connected account > Sync.
How do I force my Outlook calendar to sync? ›Open the Tools menu and select Synchronize > Synchronize with Outlook. The Outlook Synchronization dialog box opens. 2. Select the Choose what to synchronize, using the Outlook Sync Wizard option.
What to do when sync is experiencing problems? ›...
Manually sync your Google Account
- Open your phone's Settings app.
- Tap About phone Google Account. Account sync. If you have more than one account on your phone, tap the one you want to sync.
- Tap More. Sync now.
Try switching off your cell phone, resetting it or removing the battery, then trying again. Try deleting your device from SYNC and deleting SYNC from your device, then trying again. Always check the security and auto accept prompt settings relative to the SYNC Bluetooth connection on your cell phone.
Why is syncing not working? ›One of the first things that trigger the "Sync is currently experiencing problem" notification on Android is a poor internet connection. Your phone needs an active internet connection to sync information across your accounts. So, synchronization won't work if your internet is down.
How do I get Outlook to show both emails and calendars? ›...
Side By Side Mail and Calendar View in Outlook
- Click the Mail selection. ...
- Right-click on the Calendar icon, then select Open in New Window.
Outlook Google Calendar Sync 2.9. 1 is completely free and supports two-way Outlook to Google sync. You can download it as an installer or as a portable app. The sync tool works with all versions of Microsoft Outlook, from 2003 to 2016 64-bit and Microsoft 365.
How do I sync my Outlook desktop app with my email? ›- Log in to Outlook.
- Click. Settings > View All Outlook Settings.
- Click Mail in the left panel.
- Click Sync email in the middle panel.
- Click Yes in the POP and IMAP section, located under POP Options.
- Click the Don't allow… option.
- Click Save.
"To refresh your inbox in Outlook.com interface, you only need to click the refresh button (rounded arrow) across the "Folders" on the left side of your mailbox page."
Why is my Outlook calendar not updating? ›Some of the most common reasons for Outlook Calendar not syncing include: An incorrect calendar is selected for synchronization. Your Outlook account is not connected. The third-party application is misconfigured.
How do I resync my Calendar? ›
- Open the Google Calendar app .
- In the top left, tap Menu .
- Tap Settings .
- Tap the name of the calendar that isn't showing up. If you don't see the calendar listed, tap Show more.
- At the top of the page, make sure Sync is on (blue).
- Method 1.
- Step 1: Open the Settings app. ...
- Step 2: Locate the Mail and Calendar entry. ...
- Step 3: On the Storage usage and app reset page, click the Reset button. ...
- Method 2.
- Important: Reinstalling the Calendar app will also reinstall the Mail app.
- Open %userprofile%\AppData\Local\Microsoft\Outlook.
- Close Outlook.
- Delete OST files.
- Restart Outlook.
- Exit Outlook and Skype for Business.
- From the Start menu, choose Run.
- In the Run window, type this path in the Open box "%LOCALAPPDATA%\Microsoft\Outlook\"
- Click OK.
- Find the .ost file and rename it (you may need to Show Hidden Files and Show Extensions to see the file)
- Restart the computer.
The main cause of sync problems for most people are wrong Feedback and diagnostics settings. Once you change Feedback and Diagnostics settings, you should be able to sync your settings normally again.
Should my Auto sync be on or off? ›If you leave auto-sync on, you may find your Android device running low on battery power much quicker than you want. So it's best to turn it off unless you really need it. For more, see the original article at the link below.
What happens if I turn off sync settings Windows 10? ›Disabling the option Sync Settings will stop Windows 10 from syncing all your preferences at once. The Sync feature will be disabled.
Where is Auto sync in settings? ›- Choose Settings.
- Choose Cloud and accounts.
- Choose Accounts.
- Tap three dots for "More" options.
- Tap "Enable auto sync" to turn on auto sync of all accounts.
- In the main menu, go to Devices → Managed devices.
- Click the name of the device that you want to synchronize with the Administration Server. A property window opens with the General section selected.
- Click the Force synchronization button.
Automatic synchronization
On the File tab, select Options. In the Outlook Options dialog box, select Advanced. In the Send and receive section, select the Send immediately when connected check box.
Why is my Outlook calendar not populating? ›
A number of issues may lead to your Outlook calendars not populating meeting invitations. These can include Internet connectivity issues, inaccurate account information, glitches with the type of view you're using, and incorrect AutoArchive and Delegate Access settings.
How do I sync my Windows Calendar? ›On your computer, open Google Calendar. Settings. On the left panel, under “Settings for my calendars,” click the name of the calendar you want to use. Click Integrate calendar.
How do I auto sync my Windows calendar? ›Search for the Calendar app from the Start menu and open it. Click on the Settings gear icon at the lower right corner on the left pane of the Calendar app. Click on Manage Accounts and choose the account to be synced.
How do I sync my Microsoft calendar with Windows? ›The To-Do won't sync with the Windows Calendar app but if the account you use for To-Do is set up in the Mail & Calendar app, the to-Do button will open the To-Do app. If you use Outlook desktop software, the To-Do's will sync to Outlook tasks (if the account is added to Outlook.)
How do I fix the calendar date in Windows 10? ›Right-click on the time at the bottom right of the screen and select Adjust Date/Time. A window will open. On the left side of the window select the Date & time tab. Then under "Change date and time," click Change.