I was also thinking about something else.

We get in average 8-10 emails a day from Indian companies, offering links building, etc services, mentioning that they conform to the US CAN-SPAM law. We report all those mails as spam, since that law is not valid in Germany were we are located. In Germany unsolicited emails, no matter which nature, are strictly forbidden.

Now they began using our contact form. We created an IP based script which we wanted to add in our contact form, which would redirect all India visitors to our homepage instead.

Before we had the chance to go live, we read the thread at Googles Webmaster Help Center, which Janeth shared here too.

Looks like we only have two options:

1. Disallow our contact page in our robots.txt and implement our script.

or

2. Extend the script by blocking the transaction of the mail if the visitor comes from India.

In both cases it will not be cloaking. I assume the 2nd option would be possible and I obviously prefer, since I do not want my contact page to be de-indexed. I will check that with our IA too.

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