I can't send or receive messages in Outlook
Applies ToOutlook for Microsoft 365 Outlook 2024 Outlook 2021 Outlook 2019 Outlook 2016 Microsoft 365 admin

Note: Are you using Outlook for Mac? Visit I can't send or receive messages in Outlook for Mac for help.

If you see messages piling up in your Outlook outbox or people you're sending messages to aren't receiving them, try the following methods to fix the issue. 

Important: If your Microsoft cloud storage is full, you cannot send or receive email. Check your mailbox storage to see what's taking up space. Learn more about recent changes.

To troubleshoot issues you're having with sending or receiving emails in Outlook, use our guided support tool below.

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