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PHPMailer: SMTP Error: Could not connect to SMTP host
Palavras-chaves: PHP, PHPMailer, SMTP, Error | 
Cadastro: 27/09/2025 09:27:11 | Atualização: 28/09/2025 20:02:00
Cadastro: 27/09/2025 09:27:11 | Atualização: 28/09/2025 20:02:00
The PHPMailer wiki has a section on this:
https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting#php-56-certificate-verification-failure
The suggested workaround is including the following piece of code:
$mail->SMTPOptions = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true
)
);
This should work for PHPMailer 5.2.10 (and up).
Note: Obviously, and also as suggested in that wiki, this should be a temporary solution! 
