Carbonio

Email security and SMTP Relay for Carbonio

SecuraWall protects incoming mail for Carbonio and Carbonio CE, and can relay outgoing mail from the same server with IP authorisation and an SPF check.

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Monthly per domain · No long contracts · No automatic charges

SMTP Relay at a glance
Port	587, STARTTLS offered
Authorisation	Client IP address; no SMTP passwords
Client servers	Up to two per customer account
Sender check	Your SPF record must include SecuraWall
Approval	Reviewed by an administrator before sending
Requires	Backup MX or Email Security

How it fits

Quarantine users come from the Carbonio API
Delivery to your Carbonio server by IP address or host name and port
SMTP Relay tested end to end with Carbonio CE
Backup MX continuity during maintenance and outages

Quarantine users from Carbonio

Users sign in with their own mail password.

SecuraWall reads users through the administration API over HTTPS and checks each sign-in live with your server; the password is never stored, and MFA challenges are not bypassed.