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I did a search on this forum and tried several of the suggestions but non appeared to work. Some email providers (such as your ISP or even Gmail) won't let you send messages larger than a certain size. Adding pictures and large attachments to your message can prevent you from sending that message (and any messages sent repair corrupted OST in Outlook after the large message). If you’re using cPanel, Outlook is most likely setup with POP3 account or IMAP. I’ve seen some providers have issues when auto Send/Receive is set to less than 5mins. Outlook accounts can have up to 100GB of storage per mailbox.
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
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
Articles, examples, tutorials, and inspiration from our emailing experts. Create your account and connect with a world of communities. Find solutions to common problems or get help from a support agent. Occasionally, the Outlook program may need to be repaired. Repairing is a simple process but may take as long as half an hour to complete. For more information, see Repair an Office application.
Create a new Profile
But if you’ve never cleaned your inbox, then you might have maxed out your storage limit. So if you’re waiting for an email from someone, you may want to check if the sender is registered on your blocked users list. But still, it’s worth checking if other users are currently experiencing similar issues with Outlook. Microsoft comes with a great option called Work Offline.
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.
- If you can send email while Outlook is in safe mode, creating a new Outlook email profile should allow you to send email again.
- 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 disable faulty add-ins in Outlook 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.