I have had problems receiving emails from certain ISP's e.g. Hotmail and more worrying American Express for a couple of months now. I was wondering if PCA is also being blocked. If someone answers this thread I should receive an email which will test it for me.
I have tried speaking to NTL, but to be honest I think I know more than what they do.
If it is being blocked I'll have to give PCA another email address.