Hi Sale Art Circle,
Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.
Welcome to Microsoft Q&A forum.
To narrow this down quickly—since the email is flagged as over the sending limit and is being saved to Drafts—please share:
- Are you sending from Outlook.com on the web or the Outlook app (New/Classic/mobile)? Also, please copy/paste the exact message shown.
- Is this a free Outlook.com account, or does it have a Microsoft 365 subscription?
- In Outlook.com > Settings > Storage, is there any storage full warning? And approximately how large is the attachment (MB)?
Once the details above are available, the next steps will be clear.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.