On Mon, Sep 14, 2015 at 12:00:01PM -0700, Michael Peddemors wrote:
> Monitoring from ISP's and Telco's has always shown a lot of leakage
> from the servers called..
> 
> mail-pu1apc01hn0200.outbound.protection.outlook.com

I've seen a noticeable uptick in (obvious) spam from the following
similarly-named servers in the last 60 days:

        65.55.169.251   mail-bl2un0251.outbound.protection.outlook.com
        104.47.124.213  mail-hk2apc01hn0213.outbound.protection.outlook.com
        104.47.124.216  mail-hk2apc01hn0216.outbound.protection.outlook.com
        104.47.125.218  mail-sg2apc01hn0218.outbound.protection.outlook.com
        104.47.125.235  mail-sg2apc01hn0235.outbound.protection.outlook.com
        104.47.126.202  mail-pu1apc01hn0202.outbound.protection.outlook.com
        104.47.126.240  mail-pu1apc01hn0240.outbound.protection.outlook.com
        134.170.140.253 mail-hk1hn0253.outbound.protection.outlook.com
        157.55.234.144  mail-db3on0144.outbound.protection.outlook.com
        157.55.234.249  mail-db3hn0249.outbound.protection.outlook.com
        157.55.234.251  mail-db3hn0251.outbound.protection.outlook.com
        157.56.110.247  mail-bn1hn0247.outbound.protection.outlook.com
        157.56.110.248  mail-bn1hn0248.outbound.protection.outlook.com
        157.56.110.251  mail-bn1hn0251.outbound.protection.outlook.com
        157.56.112.250  mail-am1hn0250.outbound.protection.outlook.com
        157.56.112.251  mail-am1hn0251.outbound.protection.outlook.com
        157.56.112.253  mail-am1hn0253.outbound.protection.outlook.com
        157.56.112.254  mail-am1hn0254.outbound.protection.outlook.com
        207.46.100.245  mail-by2hn0245.outbound.protection.outlook.com
        207.46.100.248  mail-by2hn0248.outbound.protection.outlook.com

I haven't bothered reporting any of it because I'm not convinced that
anyone there will actually do anything meaningful about it.  But if there
is someone there with the baseline professionalism to individually and
completely investigate every single specimen (with an eye toward
identifying root cause(s) and fixing same), I would be happy to package
them all up and forward them along.

---rsk

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