Invalid Email Address iPhone

Whenever I compose an email message and select a contacts email address, I get an Invalid Email Address error.
I can send an email if I manually type the email address in fine.
It seems that my phone doesnt like the format Outlook uses:
Recipients Name (Recipients email address)
Unfortunately most of my 1000 contacts use this format which means manually inputting the email address is not feasible.
I can reply to emails from recipients with the Outlook format but cannot compose new messages as the iPhone uses the display name.
Is there a workaround for this?
Toshiba Laptop Windows 7