For some users, e-mails do not arrive without manually sending and receiving them. If you are having sync issues, you can force a fix Outlook after Windows update issues manual sync by selecting the Sync button via the View tab on the Ribbon. A status message appears at the bottom of the message list while Outlook is syncing.

Repair your classicOutlook program

It includes a listing of your accounts, autocomplete information, and your name and initials. To repair your Outlook profile or create a new one, see Fix your Outlook email connection by repairing your profile. Go to your Outbox and then open the stuck email messages. If that message has an attachment that's larger than 20MB, delete the attachment and either attach a smaller file rebuild Outlook data file quickly or attach a link to the attachment. For more information, go to Reduce attachment size to send large files with OutlookorExchange Online limits.

Make sure you are connected to the Internet

But every once in a while, the Microsoft filters get it wrong and accidentally label a normal email as spam. To start Outlook in safe mode, press the Windows key on your keyboard. In the search box, type outlook.exe /safe, then press Enter.

Check your blocked users list

If you've changed your password on the website for your email account, you'll need to change it in new Outlook, too. Sign up for tips and industry insights to level up your emailing skills. Outlook lets you block a sender or a domain in just a few clicks. This is a great way to protect your inbox from spammers and cyberbullies. If an email triggers the spam filters, Microsoft automatically moves it to your junk folder.

Create a new Profile

For more information, go to Reduce attachment size to send large files with Outlook. I deleted the Yahoo and Google accounts from Outlook and set it up again and that didn't fix anything. I uninstalled the New Outlook app and reinstalled it and that didn't fix anything. I am fairly sure it is something in my Microsoft account since all 4 of my Windows computers stopped working for the email at the same time. I have another Windows computer with a different Microsoft account and that is working fine.

Can't send mail in Outlook.com

• Outlook accounts can have up to 100GB of storage per mailbox.
• Once enabled, this setting lets you disconnect from the server.
• In the search box, type outlook.exe /safe, then press Enter.
• Create your account and connect with a world of communities.
• Go to your Outbox and then open the stuck email messages.
• To disable all add-ins, you can start Outlook in safe mode.
• Fortunately, you can change how your messages get organized.

For more information, visit Add an email Troubleshoot Office 365 Sync and Login Issues account to Outlook for Windows. If that doesn't fix the problem, see the next section. To get help and troubleshootother Microsoftproducts and services,enteryour problem here.