I just tried to activate my copy of ZBrush 4 (Mac) but had an issue with the Pixologic website, it was unable to email me the Activation Code. I got the following PHP error.
> Warning: mail() [function.mail]: Could not execute mail delivery program ‘/usr/sbin/sendmail -t -i’ in /home/regadmin/public_html/activation/opt/resend.php on line 75
I tried it again but now I’m getting this message.
> This license key has already been activated for this machine.
> To send another copy of the activation key, please click the button below.
So it looks like the account has been activated but I haven’t been emailed the serial number.