Can I do the xbox 360 warranty online?

[StingX2]

or is a mail in my one and only option

[Jdm7399]

or is a mail in my one and only option

Hey Sting buddy. I'm not sure what you mean, but I'll take a stab at it.

Are you referring to the M$ Warranty that's included inside the package of your Xbox 360? If so, from my knowledge, you'll have to mail it in.