Google cloud sending massive amounts of spam to mail servers

We've recently had to block over 10,000,000 Google cloud IP's for relentless spam slowing down our email filtering process. We're now blocking all of google cloud class B IP blocks.

enough is enough... and I suggest you all do the same:

8.34.*.*

8.35.*.*

8.228.*.*

8.229.*.*

8.230.*.*

8.231.*.*

8.232.*.*

8.233.*.*

8.234.*.*

8.235.*.*

8.236.*.*

8.237.*.*

23.236.*.*

23.251.*.*

34.0.*.*

34.1.*.*

34.2.*.*

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34.6.*.*

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35.184.*.*

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35.255.*.*

104.154.*.*

104.155.*.*

104.196.*.*

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104.199.*.*

107.167.*.*

107.178.*.*

108.59.*.*

130.211.*.*

136.23.*.*

136.64.*.*

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146.148.*.*

162.216.*.*

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173.255.*.*

192.158.*.*

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207.175.*.*