Gmail slashes spam FPs
Hotmail lagging behind on mislabelled ham.
'Email marketing' firm Lyris has released a study of spam false positive filtering, showing a general downward
trend in falsely blocked email. The survey was performed by subscribing to large numbers of valid, fully legal
opt-in email newsletters and alert systems, then measuring how many failed to make it through to inboxes.
The most startling outcome is a major reduction in filtered ham by Google's Gmail webmail service, from a
huge freak peak of 44% in the previous quarter to a mere 2.97%. Microsoft-operated Hotmail lags behind,
with 18.2%, down slightly from 23% the previous quarter.
ISPs were also measured, and European providers appear to be offering much better anti-spam services than their US
counterparts, filtering less than 0.1% of the opt-in mails compared to over 3% in the US.
A Lyris press release is here. The report is available
in full (in PDF format) here.
03 October 2006
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