About 20 years ago I was able to register IP addresses of our
designated mail forwarding servers at SpamCop (via mail to
deput...@admin.spamcop.net), so that they would not get listed,
and we don't receive reports for those.
This still seems to be active today.
Unfortunately I have not been able t
On Thu, Jul 13, 2023 at 11:31:48AM -0700, Marcel Becker via mailop wrote:
> On Thu, Jul 13, 2023 at 11:19 AM Slavko via mailop
> wrote:
> > Would not be more effective to not use technique prone to false
> > positives? For both sides...
>
> So you mean not trying to filter spam or fight spammers
On Wed, May 31, 2023 at 01:18:06AM +0200, Sebastian Nielsen via mailop wrote:
> Hiding whois details doesn't mean you hiding your identity. Normally, this
> type of privacy is also used when you want to hide the actual person that is
> responsible for, lets say paying the domains.
You don't have
On Tue, Nov 08, 2022 at 11:10:56PM +, MRob via mailop wrote:
> Why isnt it standard to put the envelope sender into the RECEIVED header?
> Does any MTA do it?
Exim does; the default received_header_text contains
"${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
--
Thomas Mec
On Wed, Jul 06, 2022 at 11:41:47AM +0200, Dan Malm via mailop wrote:
> We're seeing a lot of DNS errors for *.mail.protection.outlook.com at the
> moment. NS lookup for mail.protection.outlook.com resolves to two hostnames
> that in turn resolve to the same IP. What IP they both resolves to varies
If the QR code is just another header added to the mail, you'll need support
in every MUA to display this QR in a way that could be scanned easily.
Adding this to multiple MUAs is much more unlikely than adding support
for DKIM/DMARC checking in MUAs and prominently displaying these
authentication
On Mon, Aug 23, 2021 at 05:16:09PM +0100, Neil Youngman via mailop wrote:
> Is anybody else seeing issues with some Microsoft RDNS failing
> intermittently. I'm seeing RDNS failures in our Exim logs, but when I
> check the IPs from the command line, there are no obvious issues and it
> isn't affect
On Wed, Sep 30, 2020 at 09:15:05AM +0100, Tim Bray via mailop wrote:
> Should it be using TLS for outbound connections? I'm not seeing that?
>
> (no problem if that is something you just haven't turned on yet. And
> thanks for sorting this all out)
>
> Received: from mx.mailop.org ([2a03:4000:37
