ContentYes, if you want to use sendmail with your scripts and applications, you need to configure it to work with an existing email address. On XonHost servers your script will not send emails if you enter a non-existing email address. Was this article helpful to you? Related Articles Error: Too many recipients Error: Invalid HELO Cannot send attachments The recipient did not receive my email and I did not receive it bounced back 503 Valid RCPT command must precede DATA What is the limit on the maximum size a single email may have? Hasan Ali Posts Website Leave a Reply Click here to cancel reply. Name (required) Email (will not be published) (required) Website Comment