By default, Happyforms uses WordPress core features to send email messages. WordPress follows your server configuration regarding email sending: if your server forbids access to its email service, your emails might not make it to your inbox, or that of your recipients. Don’t panic, though! There are a bunch of solutions to overcome this limitation. The easiest one is to use a third-party, SMTP plugin like WP Mail SMTP. Using SMTP moves email sending from your server to an external service, like Gmail or your email provider of choice. If you can, we suggest SMTP over the basic WordPress functionality since it offers improved security, and reliability and frees your server from the additional work.