No please :-( ! I'm a Ceph user with a gmail account. On Thursday, August 6, 2020, David Galloway <dgallowa@redhat.com> wrote:
Oh, interesting. You appear to be correct. I'm running each of the mailing lists' services in their own containers so the private IP makes sense.
I just commented on a FR for Hyperkitty to disable posting via Web UI: https://gitlab.com/mailman/hyperkitty/-/issues/264
Aside from that, I can confirm my new SPF filter has already blocked one spam e-mail from getting through so that's good.
Thanks for the tip.
On 8/6/20 2:34 PM, Tony Lill wrote:
I looked at the received-from headers, and it looks to me like these messages are being fed into the list from the web interface. The first received from is from mailman web and a private IP.
On 8/6/20 2:09 PM, David Galloway wrote:
Hi all,
As previously mentioned, blocking the gmail domain isn't a feasible solution since the vast majority of @gmail.com subscribers (about 500 in total) are likely legitimate Ceph users.
A mailing list member recommended some additional SPF checking a couple weeks ago which I just implemented today. I think what's actually happening is a bot will subscribe using a gmail address and then "clicks" the confirmation link. They then spam from a different domain pretending to be coming from gmail.com but it's not. The new config I put in place should block that.
Hopefully this should cut down on the spam. I took over the Ceph mailing lists last year and it's been a never-ending cat and mouse game of spam filters/services, configuration changes, etc. I'm still learning how to be a mail admin so your patience and understanding is appreciated.
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