How to Resolve the \'Could Not Instantiate Mail Function\' Error in Phpmailer?

Resolving the "Could Not Instantiate Mail Function" Error in Phpmailer

Issue:

Encountering the error message "Mailer Error: Could not instantiate mail function" while using Phpmailer, despite a functioning default PHP mail() function.

Solution:

This error indicates that Phpmailer is unable to establish a connection to your mail server. To resolve this issue, consider using SMTP (Simple Mail Transfer Protocol) in your PHP script.

<code class="php">$mail->IsSMTP();
$mail->Host = "smtp.example.com";

// Optional authentication
$mail->SMTPAuth = true;
$mail->Username = 'smtp_username';
$mail->Password = 'smtp_password';</code>

Explanation:

• IsSMTP(): Activates SMTP mode in Phpmailer.
• Host: Specifies the SMTP server hostname or IP address.
• SMTPAuth: Enables authentication if your SMTP server requires it.
• Username and Password: Enter the credentials for authenticating to your SMTP server.

Additional Notes:

• Choose an appropriate SMTP server based on your email provider, such as Gmail, Outlook, or your web hosting provider.
• Ensure that SMTP is enabled on your email account and that you have authorized the use of a third-party email client like Phpmailer.
• Check your firewall settings to ensure that SMTP traffic is not being blocked.

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