If you turn off roaming and turn off cellular data, you can use your iPhone on WiFi in India without any additional charges. However, if you either make or receive calls or use cellular data, you will most likely incur substantial additional charges, depending on the specific calling plan you have with your cellular provider.
Emails are free of cost from the side of Gmail. These Emails can be sent or received without any cost. The only charges are of the internet connection.
yup
By email
I'm not sure what you mean by modeling emails. Do you mean email addresses of models? Unless this question is clarified further, I can't provide an accurate answer.
Not without permission.
No.
Yes. It's called "advertising".
Runescape, Roblox, but I don't know any more.
you hit forward and then erase all the emails on it.
Yes. It's called "advertising".
There are several alternative methods to check one's emails without going to the website of one's email provider. These methods include Mac Mail and Microsoft Outlook.
It is a crime everywhere, as federal law protects emails under the Electronic Communications Privacy Act, 18 USC 2510-2521.