What is the purpose of the contact form?
The contact form offers visitors a simple way to contact you electronically.
The contact form does not display the destination e-mail address of the contact options you publish in your contact form and saves the need to publish e-mail addresses anywhere on your website.
It is a sad fact of life that the spam community use tools that crawl websites looking for e-mail addresses, with the IASP contact form the e-mail addresses are hidden from the view of these crawlers.
IASP strongly recommends you do not publish e-mail addresses anywhere within your website to minimise the amount of spam you receive.