Sending, receiving, and organizing email in Outlook.com
Welcome Mohammadamin Shaker,
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Thank you for posting in Microsoft Q&A.
To help narrow this down, could you please confirm whether you are using a personal Outlook.com account (for example, @outlook.com, @hotmail.com, @live.com) or a work/school account?
In the meantime, please check the following:
- Do you receive any error message when sending emails? If so, please share the exact wording.
- Open Outlook.com and check the “Drafts” and “Sent Items” folders to see whether the message remains in Drafts or appears in Sent Items.
- Try sending a simple test email to yourself from Outlook.com and let us know whether it arrives.
- Sign out of Outlook.com, clear your browser cache and cookies, then sign in again and test sending.
Looking forward to your update.