Integrated Spam, Antivirus and Email Filtering
Filtering based on Reverse DNS Blacklisting, PTR DNS Record, DKIM, Greylisting, SPF, URL Blacklisting, Third Party Antivirus Scanner, IP Blacklisting, Domain Blacklisting or Email Address Blacklisting and Detecting/Blocking Abuse/Attacks.
SSL/TLS Security
SSL and TLS Encryption is enabled for both incoming and outgoing emails. For incoming email you can set SSL and for Outgoing you can set TLS as Security Type while setting up your emails with any of Email Client like Outlook, Thunderbird etc.