SMTP connect() failed - Dev Answers & Best Practices - DevClub - SugarClub
Message could not be sent.Mailer Error: SMTP connect() failed. https:// github.com/PHPMailer/PHPMailer/wiki/Troubleshooting · Issue #1032 · PHPMailer/PHPMailer · GitHub
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/ Troubleshooting - Using WHMCS - WHMCS.Community
SMTP Issues with Office 365 - WordPress Development Stack Exchange
php - I am getting SMTP ERROR: Failed to connect to server: (0) and Email could not been sent. Mailer Error (Line 301): SMTP connect() failed - Stack Overflow
smtp.gmail.com not authenticating on acymailing 5 - AcyMailing
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/ Troubleshooting - Using WHMCS - WHMCS.Community