Re: Who is legacy@legacy.ventures?
On 2018-03-21 15:08 +0000, Matt Owen wrote:
> > > On 2018-03-20 19:09 +0100, Christoph Lohmann wrote:
> > > > On Tue, 20 Mar 2018 19:09:46 +0100 Nuno Silva <nunojsilva@ist.utl.pt> wrote:
> > > > > Lately (in the last couple months, perhaps), every time I send
> > > > > an e-mail to this list, the message is successfully sent to
> > > > > the list and I get my own copy from the list. But I also get a
> > > > > message from a Microsoft (outlook.com) mail server,
> > > > > complaining that "my" message to legacy@legacy.ventures has
> > > > > been rejected.
> > > > >
> > > > > It further claims that 40.92.3.27 "isn't allowed" to send
> > > > > e-mails from @ist.utl.pt. But that's not me, that's an ip
> > > > > address assigned to Microsoft.
> > > > >
> > > > > Is anybody else getting this? Is anybody here
> > > > > legacy@legacy.ventures?
> > > >
> > > > I get those e???mails too. It is some outlook.com account. I do
> > > > not con??? sider Microsoft developers to be competent enough to
> > > > understand e???mail at all. The MIME their software produces is
> > > > nearly always invalid, they are not able to properly configure
> > > > spam control and use some insecure operating system with no
> > > > source code available so I could send them patches.
[...]
>
> The MX records for legacy.ventures are:
>
> legacy.ventures MX preference = 0, mail exchanger = smtp.secureserver.net
> legacy.ventures MX preference = 10, mail exchanger = mailstore1.secureserver.net
>
> According to WHOIS, 'secureserver.net' belongs to GoDaddy. There is also a Webmail interface on: https://sso.secureserver.net/?app=email&realm=pass
>
> ..and as previously discussed;
>
> Address: 40.92.3.27
> Name: mail-oln040092003027.outbound.protection.outlook.com
>
> So, what we have here is:
>
> 1. Posts are sent to the list
> 2. List sends post to all subscribers
> 3. SOMEONE who is using outlook.com (but not necessarily having a @outlook.com email address, it could be @hotmail.com, or a personal domain etc.), has set their mails to be forwarded to 'legacy@legacy.ventures'.
> 4. The MTA at smtp.secureserver.net is refusing the email, because quite rightly, outlook.com (40.92.3.27) is not an authoritative sender for *our* email addresses.
>
> I'm guessing, that smtp.secureserver.net, is reverse checking the
> From: address in the email headers, which in the case of this list, is
> the actual sender, not the list-address. Further guessing, this is
> GoDaddy enforcing strong anti-spam techniques.
Several things are most likely broken. I don't believe this is the right
field to check in this occasion. Perhaps the forwarder stripped too many
headers. The address to blame may be googlelegacy@outlook.com (the
failure messages include "Resent-From: <googlelegacy@outlook.com>,
...").
> Crazy idea... but has anyone actually emailed 'legacy@legacy.ventures'
> directly, and asked them to fix their forwarder?
I wonder if the forwarder that needs to be fixed is located in One
Microsoft Way...
--
Nuno Silva
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