EMAIL crack
If you mean by the term crack is the e-mail account you had compromised people (so others can pick up or read e-mail in your account), meaning that this person already have the user name and password. For that, try to secure your account with a password to change their e-mail account. To be more safe, trying to do the replacement of e-mail your password periodically at least once a month.
E-mail if you've taken someone else (already removed), there is the possibility of e-mail is still in the trash can e-mail address. If using a yahoo mail try to login to web mail yahoo mail (the address: http://mail.yahoo.com), then click the trash. Next, look at e-mail whether you are looking for is still there or not. If there is, you can mark the box provided centak next to each e-mail, and click the Move button to move the e-mail it to another folder, such as inbox,,,,, good luck.