To create SMTP credentials for a WordPress website, you will need to first decide on which SMTP service provider you want to use. Popular options include Gmail, SendGrid, and SMTP.com. Once you have chosen a provider, you will need to create an account with them and obtain your SMTP credentials, including the SMTP server address, port number, username, and password.After obtaining the SMTP credentials, you will need to install and activate an SMTP plugin on your WordPress website.