For some users, e-mails do not arrive without manually sending and receiving them. If you are having sync issues, you can force a credential loop in Microsoft 365 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

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 diagnose Office activation conflicts more information.

Make sure you are connected to the Internet

For more information, please go to Sync to manually check for new mail and to send messages in Outlook. Sometimes, an Outlook add-in will crash and prevent your email messages from sending. To disable all add-ins, you can start Outlook in safe mode. If you can send email while Outlook is in safe mode, creating a new Outlook email profile should allow you to send email again.

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.

• Adding pictures and large attachments to your message can prevent you from sending that message (and any messages sent after the large message).
• So the email you’ve been looking for might just be sitting in the Other tab of your inbox.
• To start Outlook in safe mode, press the Windows key on your keyboard.
• 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.

For many types of email accounts, classicOutlook stores your messages reset cached Exchange mode in a Personal Folders File (.pst file). You can repair this file by running the Inbox Repair Tool. This repair should take approximately fifteen minutes. For more information, see Repair your Outlook personal folders file (.pst). A profile is a group of settings that controls how Outlook works.