The best replacement for outlook web access is outlook.

The best alternatives to outlook web access are rated as following:
★★★★★  outlook
★★  outlook web app
★★  outlook anywhere

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Speaking about outlook web access, one probably shouldn't forget about mac mail.

Other search terms related to outlook web access and their ratings are:
★★★★★ mac mail
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Google Trends

Scale is based on the average worldwide traffic of outlook web access in all years. Click on graph for more.
outlook web access
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