On [linguee.de](http://www.linguee.de/deutsch-englisch/search?source=auto&query=attach%20to%20email) I've found a very good translation for *attach*:

> 
> ..., die Sie *an* E-Mail-Nachrichten *anhängen* möchten. 
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So, *anhängen* is the translation for *attach*.

In real life we usually type to someone:

> 
> Attaching a document to the *(this)* email.
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This question is more on formality.

Would it be okay if I type for example:

> 
> Mein Lebenslauf hänge ich an diesem E-Mail an.
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> 
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Is there a more formal way to say the same?