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Email Encryption

The Barracuda Spam Firewall keeps your sensitive communication safe by using AES with 256-bit keys to encrypt outbound email. For email traffic between sites over the Internet, the Barracuda Spam Firewall Message Transport Agent supports SMTP over TLS.

The encryption is handled by Barracuda’s cloud-based service to offload work from your servers and ensure fast email delivery. You don’t have to sacrifice performance to get safety.

Outbound Filtering and Data Leak Protection

Outbound filtering prevents your organization from being put on spam block lists and prevents sensitive data from leaving your organization. It lets administrators enforce content policies for data loss prevention (DLP) and to meet other content standards in outgoing email. You can use predefined filters and set up custom policies to easily detect sensitive data in emails and either block it or automatically encrypt it.

Not all data leakages are intentional. Employees can inadvertently cause internal systems to become a source for botnet spam. One of the defense layers is to stop outbound spam and check all outbound emails for viruses.

During email server outages, the email for all mail servers is visible through the Cloud Protection Layer. From the message log, you can see the status of all spooled emails and whether the mail has been re-delivered.

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