Ebay/Paypal blocking HTTP access based on SORBS DUHL / Spamhaus PBL

Steve Atkins steve at blighty.com
Thu Aug 21 13:46:54 UTC 2014

On Aug 21, 2014, at 6:23 AM, Tarko Tikan <tarko at lanparty.ee> wrote:

> hey,
> For a while now, we have been getting complains from our broadband customers about not being able to reach ebay.com/paypal.com
> We have nailed it down to some small prefixes and they are all listed in SORBS DUHL / Spamhaus PBL and have been listed for ages. These are indeed dynamic IP pools and should not send any email (not that SMTP has anything to do with HTTP).
> For some reason, it looks like ebay/paypal is now blocking HTTP access based on these blacklists.

That seems really unlikely. If they were blocking access purely due to it being from dynamically assigned ranges, someone else would have noticed.

High fraud rate or other misbehaviour from those ranges seems more likely.

Can you share the data that makes you think it's the former?

> Does anyone have working contact in their NOC or with security people? All emails to public contacts have not been answered to.


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