About 85% of emails received by an MTA server are SPAM, only 15% of messages are legitimate messages. Increase the capacity of your email service without spending anything else with infrastructure.
You do not need to install any software or script on your server. Simply redirect the MX address of the domain to our servers and the filtering starts automatically. Using a Brazilian DNSBL list, which is fed in real time by thousands of users connected through a peer to peer network, the false positive rate is almost zero.
The SPFBL.net service uses a brazilian DNSBL, with more complete information from spammers that travel specifically in Brazil. In addition, you can block or authorize any recipient that you want easily by creating your own blacklist and whitelist.
All attachments are verified by clamav-unofficial-sigs. The clamav-unofficial-sigs script provides a simple way to download, test, and update third-party signature databases provided by Sanesecurity, FOXHOLE, OITC, Scamnailer, BOFHLAND, CRDF, Porcupine, Securiteinfo, MalwarePatrol, Yara-Rules Project, etc.
All URLs are verified by Google Safe Browsing®, including all redirects are verified and executable files are downloaded for antivirus scanning.
* Warning! Hosting providers Locaweb and Mandic are not compatible with this type of service because the change to a external MX causes the stop of receiving messages at those providers.