Is it permissible to correspond with one’s fiancée via e-mail?

Does she have the right to annul an engagement which has gone on for a long time?

She has committed haraam actions with her fiancé

Intercourse and masturbation with one’s fiancee

He has contacted her several times saying that he wants to propose marriage, but she does not know anything about him

Chatting Before Marriage in Islam

It is not permissible for a fiancé to be alone with his fiancée

Ruling on engaged couple touching one another etc.

Seeing a number of women for the purpose of marriage

She wants to go out with her fiance to make sure about him so that there will not be a disaster