Clearswift has developed a migration program for its e-mail security customers within the National Health Service (NHS).
The NHS is moving its legacy X.400 messaging network to ESMTP (Extended Simple Mail Transfer Protocol), Ben Williams, Clearswift's global product manager for MailSweeper.
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Some NHS trusts have already upgraded from X.400 to the more modern SMTP protocol. However, in doing so, they have lost the secure server authentication given by X.400.
ESMTP will solve this problem because it offers an AUTH service that authenticates each server as mail is exchanged.
"Authentication means you know which server you're talking to. It prevents e-mail spoofing - people pretending to be someone else," Williams said.
Each NHS site, whether a large hospital or smaller practice, makes its own decisions on which supplier to use, but Clearswift is the largest content security supplier with 100 sites using its MailGuard filter on their X.400 systems, and a further 80 that already have MailSweeper for SMTP.
The NHS now aims to move all of those using unauthenticated SMTP services to ESMTP, Williams said, and so Clearswift has developed a migration package to help its MailSweeper for SMTP customers to upgrade, he said. It will also encourage those using its X.400 filter to move to its own ESMTP offering.