Using Outlook for Android for personal email and calendar management
If the message is being queued when a photo is attached, the most likely cause is the attachment size limit or a current Outlook.com attachment issue.
Try these steps:
- Check the message in Drafts or Outbox.
- If the photo attachment is large, remove it and try again with a smaller image.
- In Outlook.com, messages with attachments larger than 25 MB cannot be sent.
- In Outlook for iOS and Android, the attachment limit is 33 MB for other account types, and 20 MB for iCloud accounts.
- If the photo is blocked from sending, upload it to OneDrive and send a sharing link instead.
- If the issue is specifically with Outlook.com attachments, there is a documented workaround: use Attach > OneDrive or Upload and share, then send the file as a link.
- If the email is stuck in Outlook.com on a PC or Mac, use Send/Receive > Send/Receive all folders.
- If the inbox is full, clear space because a full inbox can prevent sending and receiving new mail.
If Outlook is not installed on the phone, the photo may still be getting sent through an Outlook.com account from another mail client or through the Outlook.com service itself. The supported workaround in the documented attachment issue is still to send the photo as a OneDrive link instead of attaching the file directly.