After Interview Thank You Email Or Mail Is It Alright To Send A Thank You Note Through Email After An Interview?

Is it alright to send a thank you note through email after an interview? - after interview thank you email or mail

I had a conversation today, and I want to send a thank you. The problem is that there is no e-mail address direct human resources, but my e-mail address will be interviewed to enter.

Could / should I send to my e-mail?

I should once and for all?

And can someone give me an example of what he might say in the letter and / or subject line, if I send in an e-mail?