On 1/19/15 5:18, Gil Bahat wrote: > > I am the postmaster for magisto, an app centered around user generated > content (UGC). we enjoy some popularity, and with popularity comes > abuse. There are users who utilize magisto to generate content to be > used for spamvertisement and/or other unsavory content. they will then > "invite" users to see this content, in an unsolicited fashion, using the > built-in content invite mechanism.
Perhaps some form of rate-limiting on the invite mechanism would help. > even if they incorporate it outside the invite mechanism, magisto still > serves as a "hosting server" for their content. > > Ideally, internal user reporting would be sufficient to combat it, but > in reality it isn't: both because users submit many false reports and > because such a system doesn't scale. How do you handle user reporting? Is there an option on the content page to flag it as having been spamvertized? Regarding false reports, a percentage to trigger review or more aggressively rating flagged content that has been recently uploaded might help. > DMARC can't help with regards - the messages are either entirely 'valid' > invite messages, or otherwise do not involve our domain. > FBL data can help, to an extent - but is again not relevant for the > second use case or for users spamming a provider which has no > FBL offered, or gmail who provide aggregate data only. > Spamtrap data is generally out of reach for us - so I can't estimate its > suitability to hunt these down. I suspect it will help somewhat, but not > by much. It might be useful for the internal invite case, especially if you incorporate a delay of sending bulk invites until checked against spamtraps. > Services such as spamcop will not provide data to us, for the concern > that we may listwash since we are not netblock owners. but again this > will only give partial coverage. Perhaps work with your upstream to have such reports forwarded to you? -- Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV _______________________________________________ mailop mailing list mailop@mailop.org http://chilli.nosignal.org/mailman/listinfo/mailop
