I can not send emails but I receive them

Raquel 20 Reputation points
2026-03-30T13:35:50.1666667+00:00

From today, I can not send emails but I can receive them.

Is there any problem?

Outlook | Web | Outlook.com | Email
Answer accepted by question author
Arlene D 36,225 Reputation points Independent Advisor
2026-03-30T14:15:16.6633333+00:00

Hello, what error message do you see when you try to send an email?

Open Outlook on the web, go to Settings, then Mail, then Sync email, and check the sending address under “From” is correct. Next, go to Settings, then Mail, then Compose and reply, and reset the default From address. After that, clear your browser cache or try another browser, then sign out and sign back in. These steps reset the sending configuration and fix issues where emails fail to send while receiving still works.

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  1. AI answer

    2026-03-30T13:36:08.4866667+00:00

    If emails can be received but not sent in Outlook.com/Outlook on the web, the most common causes in the provided context are:

    1. Microsoft cloud storage is full
    • If Microsoft cloud storage is full, sending and receiving email is blocked.
    • Check mailbox storage using the storage page linked from the article and delete or move items to free space.
    1. Account or password issues
    • If the account password was recently changed, update it everywhere the account is used.
    • The account might be temporarily blocked due to unusual sign-in activity; follow the steps to unblock the Outlook.com account from the article.
    1. Device or app sync issues
    • If the problem occurs only on one device or app, remove that device partnership from the mailbox and re-add it. This often fixes send/receive issues.

    If these steps do not resolve the issue, use the Outlook.com interactive troubleshooter and in-product Help:

    • Open Outlook.com, select Help on the menu bar, describe the problem, then under Still need help? choose Yes to contact support.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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