How Can I Prevent My PHP mail() Emails from Landing in Spam Folders?

Preventing Spam Filtering with PHP mail() Function

Many users have encountered the frustration of their PHP mail() emails repeatedly ending up in spam folders, particularly in Gmail. This article addresses this issue and presents a reliable solution to prevent it.

One common practice to mitigate spam filtering is adding specific email headers to your message. These headers provide additional information to the receiving mail server about the sender's identity, authenticity, and intent. Here's a sample code that includes these essential headers:

$headers = "From: [email protected]\r\n";
$headers .= "Reply-To: [email protected]\r\n";
$headers .= "Return-Path: [email protected]\r\n";
$headers .= "CC: [email protected]\r\n";
$headers .= "BCC: [email protected]\r\n";

if (mail($to, $subject, $message, $headers)) {
    echo "The email has been sent!";
} else {
    echo "The email has failed!";
}

By incorporating these headers, you can significantly reduce the likelihood of your messages being flagged as spam. The "From," "Reply-To," and "Return-Path" headers establish a clear sender identity, while the "CC" and "BCC" headers provide additional recipients.

The above is the detailed content of How Can I Prevent My PHP mail() Emails from Landing in Spam Folders?. For more information, please follow other related articles on the PHP Chinese website!