Cannot send mail mailbox full iphone

The frustrating "Mailbox Full" error on your iPhone!

Don't worry, I'm here to help you troubleshoot and resolve the issue. Here are some steps to try:

  1. Check your mailbox size: Go to Settings > [your name] > iCloud > Mail, Contacts, Calendars, and check the "Mailbox Size" section. If your mailbox is full, you'll see the exact size limit exceeded.
  2. Delete old emails: To free up space, go to the Mail app, swipe left on an email to delete it, and then confirm the deletion. Repeat this process until you've deleted enough emails to free up space.
  3. Empty the Trash: Go to the Mail app, tap the "Edit" button, and then tap "Trash" to empty it. This will permanently delete all emails in the Trash folder.
  4. Check for large attachments: Large attachments can quickly fill up your mailbox. Try deleting or reducing the size of large attachments.
  5. Check for duplicate emails: Duplicate emails can also consume space. Try searching for duplicates using the "Find" feature in the Mail app.
  6. Check for spam emails: Spam emails can also fill up your mailbox. Try marking spam emails as "Junk" or deleting them.
  7. Check your email account settings: Go to Settings > [your name] > iCloud > Mail, Contacts, Calendars, and ensure that your email account settings are correct.
  8. Check for any email filters: If you have email filters set up, they might be causing issues. Try disabling them temporarily to see if it resolves the issue.
  9. Reset your Mail app: Go to Settings > [your name] > iCloud > Mail, Contacts, Calendars, and tap "Reset" next to "Mail". This will reset the Mail app to its default settings.
  10. Contact your email provider: If none of the above steps work, you may want to contact your email provider's support team to see if there are any issues on their end.

By following these steps, you should be able to free up space in your mailbox and resolve the "Mailbox Full" error on your iPhone.