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fence是篱笆，围栏的意思，mailfence，字面意思就是周围有篱笆的信箱，成立于比利时，注重安全，免费空间500M，没有广告，注册过程简单，界面简洁，免费账户一年内没有过登陆会被冻结，被冻结后4个月内仍没有使用，账户和数据会被抹除。
评价：注重网络安全，挺好的。
需要使用在线文件存储的朋友，推荐使用dropbox，免费存储空间2G，非常好用。
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