Also in the works is beefed-up antivirus protection. Currently, Gmail protects users against viruses by blocking messages that have certain files attached to them, such as exe., or executable, files. But a full-fledged virus-scanning feature is on the horizon for Gmail, Harik said.
"We block executables and other things that are usually carriers of viruses so most viruses don't go through, but there are always weird file types. So we're working on getting a full antivirus scanning solution to add to the current list of things that we do. We're likely to possibly license one (from a third party)," Harik said.
Also a possibility for Gmail would be support for IMAP (Internet Message Access Protocol), a protocol similar to POP3 but more sophisticated, he said.
Google will also continue to sharpen Gmail's spam blocking and filtering capabilities, which are based on technology the company develops internally, Harik said. Now, for example, Gmail detects spam messages that are phishing scams, and provides a button to report them as such to Google. "We intend to develop the best spam filter in the industry," Harik said.
These efforts show Google is taking the threat of spam and phishing very seriously, Radicati's Takahashi said. "They have been very closed about what technology they're using for antispam filtering but it seems to be very effective," he said.
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