{"id":2745,"date":"2021-01-14T17:03:48","date_gmt":"2021-01-14T22:03:48","guid":{"rendered":"https:\/\/kb.n0c.com\/?post_type=ht_kb&p=2745"},"modified":"2026-10-07T15:43:02","modified_gmt":"2026-10-07T19:43:02","slug":"sitebuilder-how-to-fix-the-mail-function-returned-false-error","status":"publish","type":"ht_kb","link":"https:\/\/kb.n0c.com\/en\/knowledge-base\/sitebuilder-how-to-fix-the-mail-function-returned-false-error\/","title":{"rendered":"How to Fix the “Mail() function returned false” Error"},"content":{"rendered":"\n

Introduction<\/h2>\n\n\n\n

This article aims to help you with the “Mail() function returned false” error, which can appear on the contact page of your site created with the Site Builder tool.<\/p>\n\n\n\n

The\u00a0Glossary<\/a>\u00a0contains explanations on multiple topics and can be consulted to clarify certain terms.<\/p>\n\n\n\n

Prerequisite<\/h2>\n\n\n\n

Enter the following address in your web browser : https:\/\/mg.n0c.com\/en<\/a>.<\/p>\n\n\n\n

Open the interface (please see the article How to Create Web Sites<\/a>).<\/p>\n\n\n\n

Make sure the tool is configured in English (please see the article\u00a0How to Change the Language<\/a>).<\/p>\n\n\n\n

Fixing the “Mail() function returned false” error<\/h2>\n\n\n\n

Sometimes the error “Mail() function returned false” is displayed at the bottom of the screen.<\/p>\n\n\n\n

If this happens, please follow the instructions below:<\/p>\n\n\n\n

    \n
  1. In the side bar menu, select Settings -> Contact Form<\/strong>.<\/li>\n\n\n\n
  2. Enter an email account with the same domain as your hosting in the To<\/strong> and From<\/strong> fields (you will be able to redirect your messages to another address in your N0C panel) and click on the green Publish<\/strong> button to publish the changes:<\/li>\n<\/ol>\n\n\n
    \n
    \"Simple<\/a><\/figure><\/div>\n\n\n
      \n
    1. Once the changes are published, go to the file manager via the N0C panel and edit the file named “contact.php<\/strong>” (please refer to the article How to Use the File Manager<\/a>).<\/li>\n\n\n\n
    2. Enter the following two lines as comments in the code :<\/li>\n<\/ol>\n\n\n\n
      \/\/$headers .= \"Reply-To: \" . (!empty($this->replyto) ? $this->replyto : $this->from) . \"\" . PHP_EOL;<\/pre>\n\n\n\n
      \/\/$headers .= \"Return-Path: \" . $this->from . \"\" . PHP_EOL;<\/pre>\n\n\n\n
        \n
      1. Save the changes.<\/li>\n<\/ol>\n\n\n\n
        You will need to do this every time you publish a change with the tool. Therefore, we\u00a0 suggest that you keep a backup copy of the contact.php<\/strong> file.<\/p>\n","protected":false},"excerpt":{"rendered":"
        This procedure is intended to help you with the “Mail() function returned false” error, which may appear on the contact page of your site created with SiteBuilder.<\/p>\n","protected":false},"author":1,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[171],"ht-kb-tag":[],"class_list":["post-2745","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-sitebuilder-en"],"yoast_head":"\nHow to Fix the "Mail() function returned false" Error - N0C KB<\/title>\n<meta name=\"description\" content=\"This article aims to help you with the "Mail() function returned false" error, which can appear on the contact page of your site created with the Site Builder tool.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kb.n0c.com\/en\/knowledge-base\/sitebuilder-how-to-fix-the-mail-function-returned-false-error\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Fix the "Mail() function returned false" Error - 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