So I start trying to figure out why my facebook account keeps saying my e-mail
is invalid, when I know it isn't. I look at my mail server and see it's all
running just fine, and have been receiving mail from others just fine... so I
tail the log and tell Facebook to re-confirm the address...
Anyone from Facebook or Spamcop lurking around to look into this? It's quite
annoying.. I can't imagine how many other users are scratching their heads on
this one...
I'm a long-time SpamCop member, so I forwarded your mail to the
deputies. They are aware that facebook's servers have been
sporadically listed, and one of them specifically said the following:
"Not much we can do about the listings. They're sending spam to our
traps in large enough numbers that raises the score to a listing level.
If Facebook were to follow best practices the spam complaints and
trap hits would drop to levels that keeps them from getting listed."
> Anyone from Facebook or Spamcop lurking around to look into this? It's quite
> annoying.. I can't imagine how many other users are scratching their heads on
> this one...
I'm a long-time SpamCop member, so I forwarded your mail to the
deputies. They are aware that facebook's servers have been
sporadically listed, and one of them specifically said the following:
"Not much we can do about the listings. They're sending spam to our
traps in large enough numbers that raises the score to a listing level.
If Facebook were to follow best practices the spam complaints and
trap hits would drop to levels that keeps them from getting listed."
That's more than fair IMO
not forgetting facebook is full of wankers, so they just have one more
avenue to spam/harras do the usual miscreant things, so I bloody well
hope no DNSBL whitelists or gives them (or anyone) preferential
treatment
Yep. I understand that. Which is why I asked if anyone from Facebook or Spamcop
was lurking around. Since Facebook knows they have an issue, how about hearing
from someone over there at Facebook regarding this issue? Like it or not,
Facebook is a very popular service. Regardless whether they use it for good or
bad purposes, it is what it is, and both innocent and not-so-innocent people use
it. That in itself makes this a huge dilemma that I hope someone from Facebook
would be lurking here might address. As others have said in this thread,
Facebook only sends e-mail you specifically approve.. I'm just saying something
before my customers call me to complain about it... and I know they will.
Feb 25 19:08:18 postfix/smtpd[12682]: NOQUEUE: reject: RCPT from
outmail011.snc1.tfbnw.net[69.63.178.170]: 554 5.7.1 Service unavailable;
host [69.63.178.170] blocked using bl.spamcop.net; Blocked - see SpamCop.net - Blocking List ( bl.spamcop.net );
Using the Spamcop BL *solely* as the basis for rejecting mail is a sure way
to lose wanted email. From Spamcop's website:
"... SpamCop encourages use of the SCBL in concert with an actively maintained
whitelist of wanted email senders. SpamCop encourages SCBL users to tag and
divert email, rather than block it outright."
"The SCBL is aggressive and often errs on the side of blocking mail...
Many mailservers operate with blacklists in a "tag only" mode, which
is preferable in many situations."
IMO, the best use of the SCBL is as a scoring metric with Spam Assassin.
Additional discussion should be directed to SPAM-L.
In the early days of spamcop I'd agree with you unconditionally, but
over the years they've become much better to the point where I'd argue
it's suitable for blocking. In the case of Facebook it certainly is; if
they're is feeding spamtraps with enough volume to merit a listing then
it is wholeheartedly deserved.
[ 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.
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.