Email alerts on O2

>From what I gather, with O2 I can get an @mmail.co.uk address by just
texting ON to 212 and then the first part of any email message sent to
my @mmail.co.uk address will be sent via text to my phone. Details at
http://www.o2.co.uk/productsservices...0,,126,00.html

I see that "any messages received will be charged at 10p (Inc Vat)".

So 10p per message received, eh? That's annoying when most of the
messages I'll receive will be spam forwarded from my main email
account. Pity they can't be filtered because the spam will be tagged
"{Spam?}" in the Subject line.