I sent an email to an Ionos managed alias address which forwards mail to a Gmail address. I usually send to that person using their Gmail address directly but this time I was using "Reply-All" to an email where the originator had used the other person's email alias.
This is the non delivery report (I have replaced the person's name with the word "user":
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error.
The following address failed:
user.shorelinechurch@gmail.com:
SMTP error from remote server for TEXT command, host: gmail-smtp-in.l.google.com (173.194.76.27) reason: 550-5.7.26 Unauthenticated email from talktalk.net is not accepted due to
550-5.7.26 domain's DMARC policy. Please contact the administrator of
550-5.7.26 talktalk.net domain if this was a legitimate mail. To learn abo ut
550-5.7.26 the DMARC initiative, go to
550 5.7.26 https://support.google.com/mail/?p=DmarcRejection ffacd0b85a97
d-385e907a6easi2682030f8f.214 - gsmtp
--- The header of the original message is following. ---
UI-Loop: V01:97MgnqHwelU=:OPu+Z2f8i6Rh+04FHq13KveIDiOErnzqMSE6MNquBEs=
Received: from mx004.tt.xion.oxcs.net ([153.92.124.205]) by mx.kundenserver.de
(mxeue103 [217.72.192.67]) with ESMTPS (Nemesis) id 1N1eBy-1tg9Bt44Wu-015KdU for <user@shorelinechurch.org.uk>; Mon, 02 Dec 2024 16:14:54 +0100
Received: from proxy-20.proxy.shared.ns.xion.oxcs.net (proxy-20.proxy.shared.ns.xion.oxcs.net [2.102.196.45])
by mx-out.tt.xion.oxcs.net (Postfix) with ESMTPA id 333E2A40301;
Mon, 2 Dec 2024 15:14:47 +0000 (UTC)
I have resent my email using the person's Gmail address directly, without a failure message. Is there something to investigate here?
Now surfing from a Dell Inspiron 3881 running Windows 11 and a Qualcomm QCA9377 Wireless Network Adapter with Sagemcom FAST 5364 router.
