All examples below are "From" headers in emails sent from various web services to our corporate email. This makes it look like we are sending emails to ourselves.<p>Some examples:<p><pre><code> "'Amazon Web Services' via Redacted - Admin" <admin@redacted.com>
'Mezmo, Inc.' via Redacted Inc. - Admin <admin@redacted.com>
'service@intl.paypal.com' via Redacted - Admin <admin@redacted.com>
noreply-spamdigest via Redacted - Support <support@redacted.com>
'Shopify Partners' via Redacted Inc. - Admin <admin@redacted.com>
</code></pre>
Some notable exceptions:<p><pre><code> Heroku Billing Team <team.notifications@herokumanager.com>
Wise <info@wise.com>
</code></pre>
Questions:<p>1. What could be the justification for this practice?<p>2. Does this practice have a name?<p>3. Is this not considered spoofing?<p>4. Reading plainly, "X via Y" implies that Y is facilitating something on behalf of X, is this the intended reading?
If the shop is doing DMARC[0] & DKIM[1] this is a non-issue<p>[0] <a href="https://en.m.wikipedia.org/wiki/DMARC" rel="nofollow">https://en.m.wikipedia.org/wiki/DMARC</a><p>[1] <a href="https://en.m.wikipedia.org/wiki/DomainKeys_Identified_Mail" rel="nofollow">https://en.m.wikipedia.org/wiki/DomainKeys_Identified_Mail</a>