{"id":676,"date":"2011-08-26T13:40:12","date_gmt":"2011-08-26T17:40:12","guid":{"rendered":"https:\/\/www.inmotionhosting.com\/support\/2011\/08\/26\/using-phpmailer-to-send-mail-through-php\/"},"modified":"2026-09-11T09:13:37","modified_gmt":"2026-09-11T13:13:37","slug":"using-phpmailer-to-send-mail-through-php","status":"publish","type":"post","link":"https:\/\/www.inmotionhosting.com\/support\/website\/using-phpmailer-to-send-mail-through-php\/","title":{"rendered":"Using PHPMailer to Send Mail through PHP"},"content":{"rendered":"
\"PHPMailer<\/figure>\n\n\n\n

You want to send mail through PHP, but PHP\u2019s built-in mail()<\/code> function doesn\u2019t support authenticated SMTP (Simple Mail Transfer Protocol), and cPanel mail servers require authentication for outgoing mail. PHPMailer solves that problem: it is a popular, actively maintained, open-source library that adds authenticated SMTP, attachments, and HTML formatting to outgoing mail from your PHP code. This guide walks through a working example you can adapt for local development or a live InMotion Hosting account.<\/p>\n\n\n\n

The sample script targets PHPMailer\u2019s current namespaced 6.x and 7.x classes (PHPMailer\\PHPMailer\\PHPMailer<\/code>), not the older class.phpmailer.php<\/code> file.<\/p>\n\n\n\n

Note:<\/strong> Download the current release of PHPMailer from its GitHub repository<\/a>, or install it with Composer as shown next. Learn more about InMotion Hosting\u2019s PHP hosting<\/a> plans.<\/p>\n\n\n\n

Install the PHPMailer Dependencies<\/h2>\n\n\n\n

Composer is the recommended way to add PHPMailer to your project. It downloads the library, resolves its dependencies, and generates the autoloader your script needs, all with one command. Run this from your project\u2019s root directory:<\/p>\n\n\n\n

composer<\/span> <\/span>require<\/span> <\/span>phpmailer\/phpmailer<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
Composer creates a vendor\/<\/code> directory and a vendor\/autoload.php<\/code> file. Require that file at the top of your script and every class PHPMailer needs becomes available automatically.<\/p>\n\n\n\n
If you cannot use Composer, download the latest release from PHPMailer\u2019s GitHub repository instead, and require src\/Exception.php<\/code>, src\/PHPMailer.php<\/code>, and src\/SMTP.php<\/code> directly from the extracted archive.<\/p>\n\n\n\n
Add the Code to Send Mail through PHP<\/h2>\n\n\n\n
Before you run the script, change the example values in the table to match your own sender, recipient, and mail server details.<\/p>\n\n\n\n
Sample<\/th>Replace with<\/th><\/tr><\/thead>
robot@example.com<\/td>Your sender email address<\/td><\/tr>
mail.example.com<\/td>Your SMTP server hostname<\/td><\/tr>
password<\/td>Your sender email account\u2019s password<\/td><\/tr>
joe@example.com<\/td>Your recipient\u2019s email address<\/td><\/tr>
Name of sender<\/td>The display name for your sender address<\/td><\/tr>
Name of recipient<\/td>The display name for your recipient address<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Not sure what to put in the host, port, or username fields? Those are the same settings you would enter in an email client. See how to find your email settings in cPanel or Webmail<\/a> to look them up. On an InMotion Hosting cPanel account, the username is always the mailbox\u2019s full email address, and the recommended outgoing setting is SMTP port 465 with SSL\/TLS. To use that port instead of the sample\u2019s port 587, set Port<\/code> to 465<\/code> and SMTPSecure<\/code> to PHPMailer::ENCRYPTION_SMTPS<\/code>.<\/p>\n\n\n\n
Local development:<\/strong> Leave $developmentMode<\/code> set to true<\/code>. The script then prints the full SMTP conversation and relaxes certificate checks, which is normal for a local server with a self-signed certificate.<\/p>\n\n\n\n
Live server:<\/strong> Set $developmentMode<\/code> to false<\/code> before you deploy. The script then hides the SMTP transcript and enforces normal certificate validation, which is what you want once mail goes out to real recipients.<\/p>\n\n\n\n
<?<\/span>php<\/span><\/span>\nrequire<\/span> <\/span>\"vendor\/autoload.php\"<\/span>;<\/span><\/span>\n<\/span>\nuse<\/span> <\/span>PHPMailer\\PHPMailer\\PHPMailer<\/span>;<\/span><\/span>\nuse<\/span> <\/span>PHPMailer\\PHPMailer\\SMTP<\/span>;<\/span><\/span>\nuse<\/span> <\/span>PHPMailer\\PHPMailer\\Exception<\/span>;<\/span><\/span>\n<\/span>\n$developmentMode <\/span>=<\/span> <\/span>true<\/span>;<\/span><\/span>\n<\/span>\n$mailer <\/span>=<\/span> <\/span>new<\/span> <\/span>PHPMailer<\/span>(<\/span>true<\/span>);<\/span><\/span>\n<\/span>\ntry<\/span> {<\/span><\/span>\n    $mailer<\/span>-><\/span>SMTPDebug <\/span>=<\/span> $developmentMode <\/span>?<\/span> <\/span>SMTP<\/span>::<\/span>DEBUG_SERVER<\/span> <\/span>:<\/span> <\/span>SMTP<\/span>::<\/span>DEBUG_OFF<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>isSMTP<\/span>();<\/span><\/span>\n<\/span>\n    <\/span>if<\/span> ($developmentMode) {<\/span><\/span>\n        $mailer<\/span>-><\/span>SMTPOptions <\/span>=<\/span> [<\/span><\/span>\n            <\/span>'ssl'<\/span> <\/span>=><\/span> [<\/span><\/span>\n                <\/span>'verify_peer'<\/span> <\/span>=><\/span> <\/span>false<\/span>,<\/span><\/span>\n                <\/span>'verify_peer_name'<\/span> <\/span>=><\/span> <\/span>false<\/span>,<\/span><\/span>\n                <\/span>'allow_self_signed'<\/span> <\/span>=><\/span> <\/span>true<\/span>,<\/span><\/span>\n            ],<\/span><\/span>\n        ];<\/span><\/span>\n    }<\/span><\/span>\n<\/span>\n    $mailer<\/span>-><\/span>Host <\/span>=<\/span> <\/span>'mail.example.com'<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>SMTPAuth <\/span>=<\/span> <\/span>true<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>Username <\/span>=<\/span> <\/span>'robot@example.com'<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>Password <\/span>=<\/span> <\/span>'password'<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>SMTPSecure <\/span>=<\/span> <\/span>PHPMailer<\/span>::<\/span>ENCRYPTION_STARTTLS<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>Port <\/span>=<\/span> <\/span>587<\/span>;<\/span><\/span>\n<\/span>\n    $mailer<\/span>-><\/span>setFrom<\/span>(<\/span>'robot@example.com'<\/span>, <\/span>'Name of sender'<\/span>);<\/span><\/span>\n    $mailer<\/span>-><\/span>addAddress<\/span>(<\/span>'joe@example.com'<\/span>, <\/span>'Name of recipient'<\/span>);<\/span><\/span>\n<\/span>\n    $mailer<\/span>-><\/span>isHTML<\/span>(<\/span>true<\/span>);<\/span><\/span>\n    $mailer<\/span>-><\/span>Subject <\/span>=<\/span> <\/span>'PHPMailer Test'<\/span>;<\/span><\/span>\n    $mailer<\/span>-><\/span>Body <\/span>=<\/span> <\/span>'This is a <b>SAMPLE<\/b> email sent through <b>PHPMailer<\/b>'<\/span>;<\/span><\/span>\n<\/span>\n    $mailer<\/span>-><\/span>send<\/span>();<\/span><\/span>\n    <\/span>echo<\/span> <\/span>\"MAIL HAS BEEN SENT SUCCESSFULLY\"<\/span>;<\/span><\/span>\n} <\/span>catch<\/span> (<\/span>Exception<\/span> $e) {<\/span><\/span>\n    <\/span>echo<\/span> <\/span>\"EMAIL SENDING FAILED. INFO: \"<\/span> <\/span>.<\/span> $mailer<\/span>-><\/span>ErrorInfo;<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
A note about the closing PHP tag<\/h3>\n\n\n\n
PHP does not require a closing ?><\/code> tag at the end of a file, and the script above leaves it out on purpose. The PHP manual recommends omitting it, because accidental whitespace or a new line after the tag sends output early, which is a classic cause of the \u201cheaders already sent\u201d error. Two situations call for different handling:<\/p>\n\n\n\n
Pure PHP file:<\/strong> Omit the closing tag completely, exactly as the sample above does.<\/p>\n\n\n\n
<?<\/span>php<\/span><\/span>\nrequire<\/span> <\/span>\"vendor\/autoload.php\"<\/span>;<\/span><\/span>\n\/\/<\/span> <\/span>PHP<\/span> <\/span>code<\/span> <\/span>continues<\/span> <\/span>to<\/span> <\/span>the<\/span> <\/span>end<\/span> <\/span>of<\/span> <\/span>the<\/span> <\/span>file<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
PHP mixed with HTML or other markup:<\/strong> Add ?><\/code> right before the HTML begins, then omit the closing tag again at the end of the file.<\/p>\n\n\n\n
<?<\/span>php<\/span><\/span>\nrequire<\/span> <\/span>\"vendor\/autoload.php\"<\/span>;<\/span><\/span>\n\/\/<\/span> <\/span>PHP<\/span> <\/span>code<\/span><\/span>\n?><\/span><\/span>\n<<\/span>html<\/span>><\/span><\/span>\n  <\/span><<\/span>body><\/span><\/span>\n    <\/span><<\/span>p>Message<\/span> <\/span>sent.<\/span><<\/span>\/<\/span>p<\/span>><\/span><\/span>\n  <\/span><<\/span>\/body><\/span><\/span>\n<<\/span>\/html<\/span>><\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
If the Message Does Not Send<\/h2>\n\n\n\n
If the script prints \u201cEMAIL SENDING FAILED. INFO: \u2026\u201d instead of the success message, PHPMailer threw an exception because something in the send failed. Set $developmentMode<\/code> to true<\/code> temporarily so PHPMailer prints the full SMTP transcript instead of the generic error message. Most failures trace back to an incorrect host, port, username, or password, so check those values against your mailbox\u2019s settings first. If the connection itself fails or times out, work through why won\u2019t my PHP app send mail?<\/a> next.<\/p>\n\n\n\n
Save the script, upload it to your server, and load it in a browser. A successful run prints \u201cMAIL HAS BEEN SENT SUCCESSFULLY\u201d and hands the message to your mail server for delivery. If you only need to send a simple message without SMTP authentication, compare this approach with PHP\u2019s built-in mail() function<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
You want to send mail through PHP, but PHP’s built-in mail() function doesn’t support authenticated SMTP (Simple Mail Transfer Protocol), and cPanel mail servers require authentication for outgoing mail. PHPMailer solves that problem: it is a popular, actively maintained, open-source library that adds authenticated SMTP, attachments, and HTML formatting to outgoing mail from your PHP Read More ><\/a><\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_ayudawp_aiss_exclude":false,"_ayudawp_aiss_exclude_summary":false,"_ayudawp_aiss_summary":"You want to send mail through PHP, but PHP's built-in function doesn't support authenticated SMTP (Simple Mail Transfer Protocol), and cPanel mail servers require authentication for outgoing mail. PHPMailer solves that problem: it is a popular, actively maintained, open-source library that adds authenticated SMTP, attachments, and HTML formatting to outgoing mail from your PHP code. If you only need to send a simple message without SMTP authentication, compare this approach with PHP's built-in mail() function.","_ayudawp_aiss_summary_provider":"extractive","_ayudawp_aiss_summary_hash":"8f3cd11cb1a97d0a05285f842c7a2b255660e693","_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[4288],"tags":[],"class_list":["post-676","post","type-post","status-publish","format-standard","hentry","category-website"],"acf":[],"yoast_head":"\nUsing PHPMailer to Send Mail through PHP<\/title>\n<meta name=\"description\" content=\"Learn how to send mail through PHP with PHPMailer, from installing the library with Composer to fixing common SMTP send errors.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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