HELP! Deleted pop account and lost all emails!

[Yucca]

Please help guys iv lost over 4 years of work emails.

I deleted my pop account in mail by accident and although i set it up again immediately using the same information all my inbox/sent/trash emails have gone!

Iv looked in the library-mail folder where they should be but can only see a few recent emails from today from after i reset up!

I don't use time machine or have a back up (stupid i know).

Any help would be much appreciated!!!

 

[Yucca]

I do think i will need some recovery software.

Uv had a look at a fee recovery softwares and they all say you have to boot from CD, but my mac book air has no drive!!!

Can you not boot from USB instead?!