Every message you send passes through the Outbox, so there is always somewhere to look while it is on its way.
- In the Outbox, the message is waiting for your provider's server to accept it. BlueMail keeps retrying on its own, with nothing for you to do.
- In Sent, it is gone and delivered as far as your provider is concerned. The message leaves the Outbox at that moment.
- In Drafts, BlueMail could not get it away and has handed it back to you complete and ready to resend, with a notice naming the account.
To watch it happen, open the folder list by tapping your account avatar at the top left and choose Outbox. Most messages pass through so quickly that you will not catch them there at all.
If Something Is Waiting Longer Than Expected
A message that sits in the Outbox is being refused rather than ignored, and the reason is worth reading: see Why Is My Email Stuck in the Outbox? and What is Outbox Folder?.
If your connection dropped mid-send, What happens if my connection drops while sending an email? covers what BlueMail does next.
Wanting confirmation that the recipient opened it is a different thing, and BlueMail can ask for that too. See How to Request a Read Receipt?
