SMTP over HTTP traffic, looks fishy.

[killy <killfactory () gmail com>]

Over the last several days, we have seen a significant increase in the
attempts to tunnel SMTP through HTTP. Most of these attacks have come
out of China in the past.


Can anyone shed a little light into what they are trying to accomplish?



We went from a high average of 400 attempts to 700 in recent days.


TIA

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