AXIGEN Mail Server comes with a full security feature set, guaranteeing secure reception, transit and delivery of email and protection for your confidential data.Authentication
AXIGEN server supports authentication, meaning it can be instructed to accept only connections/messages from authenticated entities. CRAM-MD5, LOGIN, PLAIN, DIGEST-MD5 and GSSAPI methods are available for client authentication, reducing the risk of unauthorized connections.
Encryption(SSL/TLS)
All AXIGEN communication protocols can benefit from SSL/TLS technology which allows sending encrypted messages across networks and preventing plain text messages to be intercepted on the way from sender to recipient. This encryption method guarantees secure data transmission over networks.
Built In Firewall (application level)
Stopping spammers and preventing DOS attacks is one of the most important tasks of a mail server and the sooner the problem is identified in the mail stream , the better. This is why AXIGEN has a built in Firewall at the application (TCP listener) level that allows Administrator to control connectivity parameters, like the following listener rules:
- maximum simultaneous connections;
- maximum connections to be accepted during a time interval;
- maximum simultaneous connections accepted from a single host (that may be an attacker);
Furthermore, Administrators may define IP sets that have specific sets of such rules, applied with different priorities or IP sets whose connections are denied. For more details see Listener Rules.
Anti-spoofing (SPF and DomainKeys Compliant)
SPF authentication is used by the SMTP Incoming module in AXIGEN to determine whether the mail message comes from an authorized source. DomainKeys is an e-mail authentication system designed to verify both the DNS domain of an email sender and the message integrity. This additional authentication method significantly reduces spoofing attempts, that is, unauthorized attempts to gain server access, or assuming a fake identity when sending an email.
Message Acceptance Rules
The system administrator can configure and implement message acceptance policies and adjust them to best suit their security requirements. Incoming connections established via SMTP and the message flow can be easily managed using the established policies.
Antivirus / Antispam
The AXIGEN Mail Server can easily integrate with a large number of antivirus/antispam applications, either commercial, or open source. Starting with version 5.0 SpamAssassin is integrated within the AXIGEN kit.
Available Antivirus applications: ClamAv, KAV(Kaspersky) for Mail Servers, BitDefender, Sophos, F-Prot, DrWeb, Symantec, F-Secure, Avast, eTrust, Norman, Panda, McAfee.
Available Antispam applications: SpamAssasin, AVG, Kaspersky Anti-Spam, Avira MailGate, BitDefender Mail Protection for Enterprises, Symantec Brightmail AntiSpam.
Routing Rules
The Processing policies correspond to the SMTP Processing and SMTP Outgoing modules.
On one hand, they enable administrators to define the NDR (Non-Delivery Receipt) text and the conditions when such a message is returned.On the other hand, they allow system administrator to customize SMTP Outgoing actions for all or part of the relayed email communication.
Message Rules
Message rules instruct the AXIGEN Mail Server to take certain actions on processed email messages based on pieces of information contained by the message headers.
See subsections of current page for more details:
Authentication and EncryptionSPF and DomainKeys
Mail Filtering