Hi Matt, thank you very much for your kind reply. Best Regards.
*Denis Salicetti* <http://linkedin.salicetti.it/> Avviso di riservatezza <http://goo.gl/zS2xL> | Inviami messaggi protetti <http://goo.gl/LbhIoi> 2016-01-17 23:42 GMT+01:00 Matt Simerson <[email protected]>: > This sounds quite "normal" in my experience. > > I started using DMARC for exactly this reason, when one of my domains > experienced increased spoofing attacks. In the years since, I've witnessed > this scenario play out in a dozen other domains I manage for my clients. In > every case, deploying DMARC for their domain with p=reject greatly reduces > the volume of bounces they receive and the reports reveal the vast majority > of attacks originating in China and smattering of other IPs from around the > world. Within weeks after deploying DMARC, the attacks on that domain tail > off and all but one case I've seen, don't recur. > > Matt > > PS: My same size is too small to draw conclusions but it seems that > shorter domain names are more likely to be abused. > > On Jan 17, 2016, at 2:08 PM, Denis Salicetti via dmarc-discuss < > [email protected]> wrote: > > Hi Guys, > I have implemented DMARC for long with p=none rule with a minimal and > sporadical Threat/Unknown sources, but recently I had to increase to > p=quarantene and then to p=reject because I'm having a lot > of Threat/Unknown sources (25% rate). > It seems that lately my domain is under serious attack. I'm pretty sure I > have zero impact of my legit email flow because each configuration is good, > therefore every Threat/Unknown source is not legit (most of all from China). > > Someone more experienced of me can tell me if this rate is usual? Is there > something more that I can do to minimize it? > > Thank you very much. > > *Denis Salicetti* <http://linkedin.salicetti.it/> > > Avviso di riservatezza <http://goo.gl/zS2xL> | Inviami messaggi protetti > <http://goo.gl/LbhIoi> > _______________________________________________ > dmarc-discuss mailing list > [email protected] > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well > terms (http://www.dmarc.org/note_well.html) > > >
_______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
