Spamcop Blocks Facebook?

Tomas L. Byrnes tomb at
Sat Feb 27 05:15:56 UTC 2010

There's more to it than just that Facebook themselves occasionally fit
the profile of a spammer, and so some of the more stringent networks may
filter mail from them.

Facebook is a major source of drive-by malware, and some of the apps on
Facebook tread close to the spyware/adware/parasite line and so other
security tools/IP reputation services, depending on how they implement
the blocks for the droppers, and other undesirables, may actually filter
all traffic to/from the FB servers, as opposed to the dropper redirect
or app/adware host.

Regardless, for some subset of the world, reachability to various social
networking sites is becoming less reliable.

> -----Original Message-----
> From: Rich Kulawiec [mailto:rsk at]
> Sent: Friday, February 26, 2010 7:15 PM
> To: nanog at
> Subject: Re: Spamcop Blocks Facebook?
> [ This discussion really should be on spam-l, not nanog. ]
> I'm not affiliated with Spamcop, however, it's well-known among
> those of us who work in this area that (a) Facebook has been spamming
> for quite some time and (b) they're not the only "social network"
> that's doing so.  So it's not especially surprising that one or
> more DNSBLs/RHSBLs is/are listing them: they've earned it.
> Point of order, however: Spamcop blocks nothing.  Mail system
> administrators who choose to use their resources may block or
> score or tag or ignore at their discretion.
> ---Rsk

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