OT: regex to find email

[Josh Close]

I've been trying to find a good regex to parse emails, but haven't
found any to my liking. I basically need to have

( r'[a-z0-9\.\-\_]@[a-z0-9\.\-\_]', re.IGNORECASE )

but the first part can't start with .-_ and the last part has to have
a . in it (first/last being before/after the @).

Thanks.

-Josh