[UA-discuss] Spam Filtering

Andrew Sullivan ajs at anvilwalrusden.com
Wed Feb 8 17:31:00 UTC 2017

On Wed, Feb 08, 2017 at 04:47:52PM +0000, Andre Schappo wrote:
> Recently I tested sending email from my DataMail 小山@电邮.在线 to
> some people on gmail. Mostly they report that my email to them goes
> into their gmail Spam/Junk folder. I deduce that the gmail spam
> filtering software is treating chinese/unicode email addresses less
> favourably than ascii email addresses.

That seems like a leap.  How many of those people speak Chinese

Most spam systems are Bayesian and have been taught to look for
patterns that match other spam.  Everyone who has taught gmail to
recognize "Han in the headers == spam" will have to un-teach it that.
I don't know about you, but since I'm not a native user of Han
characters I have certainly taught my spam filters such rules of


Andrew Sullivan
ajs at anvilwalrusden.com

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