Re: [mailop] Zohomail & Carrierzone

2019-10-31 Thread Ken O'Driscoll via mailop
On Thu, 2019-10-31 at 11:05 -0700, Autumn Tyr-Salvia via mailop wrote: > I don't have a lot of familiarity with either provider. Does Zohomail do > no domain validation before relaying messages, or does this indicate a > broader compromise? On any Zoho service I'm familiar with, they do implement

[mailop] Zohomail & Carrierzone

2019-10-31 Thread Autumn Tyr-Salvia via mailop
Hello, In my work helping companies with email authentication, I sometimes come across interesting abuse cases. I was just talking with a customer that is a large manufacturing firm who received a report about a spoofed message sent from a domain they do not use, which is at DMARC p=reject with an

Re: [mailop] Strange Optimum bounce code

2019-10-31 Thread Tim Starr via mailop
Trying those, thanks! Already tried similar role accounts for their other domains, but those bounced... -Tim On Wed, Oct 30, 2019 at 5:50 PM Chris Woods < christopherwoods+list-mai...@gmail.com> wrote: > It's an RBL-style block response but it may be due to an internal > blacklist. Have you cont

Re: [mailop] Strange Optimum bounce code

2019-10-31 Thread Tim Starr via mailop
Each message has its own unique return-path address with that parent domain and subdomain naming convention. They're redacting the localpart for unknown reasons. -Tim On Wed, Oct 30, 2019 at 7:45 PM Ángel via mailop wrote: > On 2019-10-30 at 16:02 -0500, Tim Starr via mailop wrote: > > My clien

Re: [mailop] EmailBasura blacklist DOWN or DEAD?

2019-10-31 Thread Ewald Kessler | Webpower via mailop
On Wed, 30 Oct 2019 at 17:30, Bill Cole via mailop wrote: > On 30 Oct 2019, at 12:01, Ewald Kessler | Webpower via mailop wrote: > > > Hi, > > > > Does anyone know anything about the blacklist Email Basura and it's > > status? > > http://multirbl.valli.org/detail/bl.emailbasura.org.html provides