I just switched to Yosemite 10.10.2, and I often work in three different countries (UK, Belgium and France) using three professional email accounts from three local internet providers.

Sometimes, when I write an email in one country using one of my internet accounts, that account's SMTP settings may not be quite right for that country's internet provider. So when I click the SEND button, I get a message saying that the outgoing server couldn't find the recipient's address -- which is fair enough. Under my previous Entourage system, the email would then go into the Draft folder. I could retrieve this email, switch to a different sending address and send it successfully a second time. 

With Outlook under Yosemite, however, when an email does not send successfully, it disappears. It no longer goes into the Draft folder where I could retrieve it and modify it. So I have to think again about the text that I had written and rewrite a new email. This is a big time sink, as it can occur two to three times a day.

Does anyone know if these disappearing emails are stored anywhere, when they don't appear in the Sent Items folder? Is there a way to access them?

Many thanks for your input!

Pierre