Re: Automatically report spam from rspamd

[Michael Kliewe <mail@xxxxxxxxxxxxxxxx>]

Am 29.04.2023 um 00:55 schrieb Piotr Masłowski:
> Hello,
>
> On Fri Apr 28, 2023 at 10:38 PM CEST, M Champion wrote:
> > Many legitimate emails get marked up as SPAM and would also be
> > reported.  I would rather trust a human admin to report offenders to
> > DNSWL, and certainly not for a single instance that a machine has
> > decided is SPAM.
> Conversly, I – and maybe other people running personal e-mail servers –
> would greatly appreciate being notified when one of our messages gets
> marked as spam. Though I don't think there's an easy way that could be
> arranged. Something like DMARC reports I guess. Having extra details
> would be nice. Maybe admins would be more willing to share them in this
> smaller community…
Hi,

What you want is called "feedback loop", some of the big providers offer 
this service (Microsoft, Yahoo, United Internet (GMX/web.de), AOL, 
mail.ru, Fastmail, Comcast, ...).

https://www.m3aawg.org/fbl-resources
https://hilfe.web.de/email/spam-und-viren/feedbackloops.html

You give them your domain, you prove the ownership of the domain, and 
either give them your IP addresses or DKIM selectors.

After registering those feedback loops you will get an email every time 
a customer of those providers moves an email from you into their Spam 
folders. This greatly helps finding spam accounts or hacked accounts in 
your system.

There is also an interesting RFC draft. If this gets approved, you don't 
have to register with >20 providers separatly anymore, you "just" add a 
header in all your emails where you want the other providers to send 
feedback loop mails to... Services like DNSWL could also use it 
automatically, no need to register somewhere.
https://datatracker.ietf.org/doc/draft-benecke-cfbl-address-header/

Greets