Important: Mandatory declaration of relayed IP addresses before enabling the outbound relay
To use our outbound gateways, you must first declare the IP addresses (excluding Microsoft 365) from which you intend to relay your email traffic. Without this prior declaration, your messages may be rejected with a SPAM.G verdict.
How does it work?
The relay service allows you to send your email traffic through our platform instead of directly from your own server, ensuring the authenticity of messages sent from your domain.
To do this, you must provide the IP address of the server that will send emails to our platform. Once verified by our teams, this IP address will be authorized for relaying exclusively for your domain.
You will then be able to send your emails from your server to our SMTP service:
smtp.security-mail.net
How to declare your IP addresses
Go to the Relayed IPs section, click on “Add an IP”, enter the addresses in the dedicated field, then click “Edit” to submit your request.
A confirmation banner will notify you that your request has been successfully sent to our teams.
Declared IPs are reviewed within 24 hours to ensure that they are not configured as open relays and are not listed on any blacklists.
Important
Do not enable your outbound relay until you have received written confirmation from our support team validating the addition of your IP addresses. Enabling the relay prematurely may result in your messages being rejected.