Re: [mailop] SendGrid is deleting your mail

2023-06-21 Thread Matt Harris via mailop
On Wed, Jun 21, 2023 at 6:11 PM Sebastian Nielsen via mailop < mailop@mailop.org> wrote: > >>The RFC forbids doing that, and I argued against it > > The RFC and reality is two different things. If a client don't want to > retry, I think they are free to choose to not retry. > This is a terrible

Re: [mailop] HIPAA compliant email (was Re: So uh... Zoom/Sendgrid... How's that webinar spam investigation coming?)

2021-08-05 Thread Matt Harris via mailop
On Thu, Aug 5, 2021 at 10:24 AM Luis E. Muñoz via mailop wrote: > > > On 5 Aug 2021, at 10:26, yuv via mailop wrote: > > > If anyone can suggest an email relay system that is compliant with US > > HIPAA , I would love to connect > > my internal email system

Re: [mailop] Effeciveness (or not) of SPF

2020-12-06 Thread Matt Harris via mailop
On Sun, Dec 6, 2020 at 7:20 AM Hans-Martin Mosner via mailop < mailop@mailop.org> wrote: > In addition, manual checks against spam mails from hosts on > spam-supporting or indifferent network IP ranges shows that > spammers provide SPF records for their domains, of course, so properly > applied

Re: [mailop] IP rental

2020-08-29 Thread Matt Harris via mailop
On Fri, Aug 28, 2020 at 2:05 PM Joe Provo via mailop wrote: > > However a policy respesenting the converse, explictly calling it > out as prohibited, has not been put forward by the community. If > anyone is interested in developing such a policy, please feel free > to either > - submit yourself

Re: [mailop] Delisting request from sendgrid customer about ip used in recent phishing campaign.

2020-08-11 Thread Matt Harris via mailop
On Tue, Aug 11, 2020 at 2:21 PM Michael Orlitzky via mailop < mailop@mailop.org> wrote: > In the past few months there have been several threads on mailop and > similar lists (sdlu, spamassassin-users, nanog, ...) complaining about > how SendGrid doesn't seem to do anything at all to stop the

Re: [mailop] Is DNS-over-HTTPS bad? Sure. (was: Happy Holidays Everyone!)

2020-07-06 Thread Matt Harris via mailop
On Mon, Jul 6, 2020 at 3:48 AM Vittorio Bertola via mailop < mailop@mailop.org> wrote: > > The bad idea is taking an extremely marginal use case ("there is a > dissident in a third world country whose government is blocking access to > Wikipedia via DNS and we want to circumvent that block") and