The anti-virus, anti-spam and content security solution provider MicroWorld Technologies has uveiled MailScan 5.3, a comprehensive security software for mail servers.

The new versions are packed with a host of proactive technologies and advanced algorithms in various aspects of email security. They are compatible with Windows Vista and Windows 64 bit platforms. Web registration of the product is enabled in all of them, said a MicroWorld official.

In MailScan for SMTP and Exchange Server 2007, MicroWorld introduces SMTP Transparent Proxy. This will enable a Transport Layer Security based communication between Hub Transport Server and Edge Transport Server.

TLS is capable of authenticating both the Client and the Server in order to create an encrypted connection between the two.

Graylisting is a powerful spam control tool that the new versions of MailScan for SMTP and Exchange Server incorporate in them. It is a method of blocking spam by temporarily rejecting mails coming from unknown senders.

If the mail is legitimate, the originating server in most cases will re-attempt to send it, which will then be accepted. However it's observed that most spamming servers do not try to send the mail over in case of a first time rejection.

The software now provides POP3 authentication for accessing quarantined mails. Considering the fact that not all Enterprises will have LDAP configured, this can provide them a means to authenticate valid users and restrict unauthorized access to quarantined mails.

'We use a multilayered mechanism in Spam Control. Several technologies like Real-time Black List, SURBL, General Header Tests, MX/A DNS Record Verification, X-Spam Rules Check, Non Intrusive Learning Patterns and Gray Listing are used in the process so that we deliver the best accuracy in filtering mails,' said CEO of MicroWorld Govind Rammurthy. - TradeArabia News Service