Right now, my Rails website is being hosted on a regular virtual host, running CentOS and cPanel, the classical way. I also have an e-mail address on my domain, and my host also, obviously, provides an e-mail server.
I would like to move my portfolio website to a PaaS provider, such as Heroku. However, I am unsure whether I will still be able to receive e-mails on e-mail addresses associated with my domain name, when my site is hosted on Heroku.
If not, what could be an alternative?