For some users, e-mails do not arrive without manually sending and receiving them. If you are having sync issues, you can force a Microsoft Outlook Email Repair Tool Online 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 classic Outlook program

And in most cases, that’s where it belongs. For more information on creating a new email profile, see Create an Outlook profile. Please go to Reset a forgotten Microsoft account password for guide to Office 365 sign-in errors more information.

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

• I uninstalled the New Outlook app and reinstalled it and that didn't fix anything.
• Articles, examples, tutorials, and inspiration from our emailing experts.
• For more information, go to Reduce attachment size to send large files with Outlook or Exchange Online limits.
• Which means that you won’t be able to receive new messages.
• For more information on creating a new email profile, see Create an Outlook profile.
• Some email providers (such as your ISP or even Gmail) won't let you send messages larger than a certain size.
• I have another Windows computer with a different Microsoft account and that is working fine.

For more information, visit Add an email Outlook OST vs PST repair account to Outlook for Windows. If that doesn't fix the problem, see the next section. To get help and troubleshoot other Microsoft products and services, enter your problem here.