Feeds

Mirapoint adds directory to email gateway

Local anti-spam checks mean less network load

The Essential Guide to IT Transformation

Mirapoint has developed what it says is the first secure email gateway with a built-in directory and policy engine. According to the company, this increases security and lightens the load on the gateway because it no longer has to query the corporate directory server through the firewall for every incoming message.

The directory software is now a standard feature on Mirapoint's RazorGate appliances and will be a free upgrade to customers on support contracts, said Mike Dodson, the company's security accounts technical director.

He said that the Mirapoint directory software can copy email addresses and associated policies - but not more sensitive data such as passwords or user names - from a variety of LDAP servers, such as Active Directory, Domino or eDirectory. It also has features to detect and prevent directory harvesting, he added.

"Historically, the gateway would have a steady stream of traffic going back to the directory - checking for valid recipients, whether they can receive that type of attachment, and so on," he explained. "The problem is that spikes in email traffic are passed on to the directory servers.

"Also, email gateways are hardened, but if your gateway server were ever compromised, the attacker would be able to attack your directory. This way, the most they could get is a list of email addresses."

But doesn't the addition of policy enforcement increase the workload on the email appliance, reducing the amount of email it can handle? Dodson claimed not.

"Quite the opposite," he said. "Now when we query the directory it's process-to-process, not over the network, so it works in our favour. We actually get a marginal performance improvement."

He claimed that while the technology to replicate directory data is pretty standard in the metadata world, this is the first time it has been used in an email appliance.

The increasing importance of the directory in messaging means that Mirapoint's competitors are sure to follow suit, but Dodson suggested that integrating the replication technology and the directory into the email appliance, and providing the right management tools, would take them many months. ®

Build a business case: developing custom apps

More from The Register

next story
14 antivirus apps found to have security problems
Vendors just don't care, says researcher, after finding basic boo-boos in security software
'Things' on the Internet-of-things have 25 vulnerabilities apiece
Leaking sprinklers, overheated thermostats and picked locks all online
iWallet: No BONKING PLEASE, we're Apple
BLE-ding iPhones, not NFC bonkers, will drive trend - marketeers
Only '3% of web servers in top corps' fully fixed after Heartbleed snafu
Just slapping a patched OpenSSL on a machine ain't going to cut it, we're told
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Israel's Iron Dome missile tech stolen by Chinese hackers
Corporate raiders Comment Crew fingered for attacks
Tor attack nodes RIPPED MASKS off users for 6 MONTHS
Traffic confirmation attack bared users' privates - but to whom?
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.