SMTP Config

SMTP Bundle

By default Contao relies on the server's local mail transport, which often lands in spam or fails silently. SMTP Bundle routes every outgoing e-mail through a proper SMTP server you control.

Features

• Backend settings for host, port, username, password, and encryption
• Supports SSL and STARTTLS
• Works with any SMTP provider: Gmail, Mailgun, Postmark, Brevo (Sendinblue), custom servers
• Send-test button to verify the configuration without leaving the backend
• Overrides Contao's mailer transport globally — no code changes needed

Why use it

• Improve e-mail deliverability and avoid spam folders
• Centralise mail configuration for all Contao notifications, form submissions, and member e-mails
• Diagnose delivery problems with clear error messages

Requirements

• Contao 4.13 or 5.x
• PHP 8.1+
• An SMTP account with the mail provider of your choice