Budget airline EasyJet has achieved a 35% savings over three years by switching to a cloud-based software-as-a-service e-mail security system.
The move is part of the airline's strategy of outsourcing non-core activities, said Mark Beard, IT services manager at EasyJet.
This has enabled the 59-strong IT team that supports about 7,000 computer users to focus on delivering business value and differentiating services, he said.
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The airline is using Proofpoint Enterprise features such as LDAP integration to automatically apply different sets of e-mail filtering rules to different groups of users.
Multilingual end-user interfaces allow the airline's internationally-distributed staff to interact with the system in their own language.
"We chose Proofpoint Enterprise over competitors because of its highly configurable, modular approach, anti-spam effectiveness, reporting capabilities and ease-of-use," said Beard.
Proofpoint claims a 99% anti-spam effectiveness and offers signature-based and zero-hour virus protection, e-mail firewall, deep content inspection and outbound e-mail filtering capabilities.
There has been a noticeable drop in the number of unwanted e-mails coming through the business, with about 8,000 viral messages blocked each month, he said.
Administrative overhead is also much reduced, said Beard, because the system allows users to manage their own and report spam without IT intervention.
The biggest business benefits, he said, include reduced management requirements and good technical support.
"Management overhead is almost nil and we've also had no major spam or virus incidents since the system was introduced," said Beard.