XFdestek
Kurucu Üye
Since around the time we upgraded our forums from 2.3.3 to 2.3.4, sending email via SMTP using Brevo (formerly Sendinblue) stopped working. I investigated the issue today, updated the settings with the new Brevo domain name and values, and get the following error when "Use SSL/TLS" is checked in the XenForo Email Options control panel: