If you are using a hosting company, then the first order of business is to contact them. The majority of hosts do support mailing from the server, so simply reporting the error may solve the problem. If they have purposely disabled the mail function, ask if they have a local SMTP server you can use and what authentication information it requires (they may provide you with a username/password).
Configure Email in ACP:
- Add your Gmail address in Admin email address field, for example
- Enter Email signature.
- Use SMTP server for email, mark Yes.
- SMTP server address field, enter
- SMTP username field, your Gmail email, for example
- SMTP password field, your password account Gmail account