outlook.com
Just now, I was working on a draft on outlook.com. I saved the draft and then started composing a new email. I finished sending the email and then went back into my Drafts to look at the draft I was previously working on. It has disappeared and is not to be found in any of the other folders either. How do I recover it?
FYI: I went back to Hotmail just to check and it is not there either.
Does Hotmail or Outlook.com have a similar feature?
Yes, Outlook.com has that feature as of this week.
If yes, how does it work?
This blog article explains how it works. It works the same as with Gmail.
Example
Say your email address is myname@outlook.com.
You can add something with a plus + sign.
So, sending an email to myname+mailinglist_topic_x@outlook.com will still be delivered to myname@outlook.com.
Then you can create a rule with, for example, the filter To-line contains myname+mailinglist_topic_x@outlook.com and redirect those emails to another folder.
Image source: http://www.ghacks.net/2013/09/17/can-now-use-email-aliases-outlook-com
If a copy of the e-mail is in your sent items then yes, it has been sent.
Best Answer
Turns out, there is nothing to be done in such a situation.
This is the only time I've had an issue with a lost draft and this happened at a time when Outlook.com had just launched. All this to say that even the reason for why the draft suddenly disappeared will remain unknown.