Why Am I Getting Connectivity Errors When Sending Emails via Gmail SMTP with CodeIgniter?

Sending Email with Gmail SMTP Using CodeIgniter Email Library: Troubleshooting Connectivity Errors

This question addresses the challenges faced while using the CodeIgniter email library to send emails via Gmail SMTP. The provided PHP code demonstrates the configuration and usage of the library. However, the user encounters connectivity errors and seeks assistance in resolving them.

To resolve the "Connection timed out" error, consider the following:

• Ensure that the SMTP port used is correct (either 465 for SSL or 587 for TLS).
• Verify the accessibility of the SMTP host (smtp.gmail.com) and that it is not blocked by firewalls or other network restrictions.

To address the "SSL operation failed" error:

• Port 465: Ensure you have OpenSSL support in your PHP installation.
• Port 587: Use the configuration provided in the proposed solution. It includes specifying the SMTP parameters, loading the email library with the custom configuration, setting the newline character, and sending the email. Additionally, TLS allows authentication.

Furthermore, here is an alternative solution from the CodeIgniter Forums that may help solve the connectivity issues:

$config = Array(
    'protocol' => 'smtp',
    'smtp_host' => 'ssl://smtp.googlemail.com',
    'smtp_port' => 465,
    'smtp_user' => 'xxx',
    'smtp_pass' => 'xxx',
    'mailtype' => 'html',
    'charset' => 'iso-8859-1'
);
$this->load->library('email', $config);
$this->email->set_newline("\r\n");

// Set to, from, message, etc.

$result = $this->email->send();

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