They also started using new IPs without PTR records to send out mail. Though so has Microsoft just recently. Both heavily frown upon that when receiving mail themselves. Do as we say...
iCloud Mail has DNS misconfigured?
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Re: iCloud Mail has DNS misconfigured?
#22The only issue that I have with iCloud+ with my custom domain is about two gmail accounts which I don’t get mail from. It’s super weird.
Re: iCloud Mail has DNS misconfigured?
#23This was mentioned earlier today on the mailop list:
https://www.mail-archive.com/mailop@mailop.org/msg24300.html
with a later response indicating that Apple was aware:
https://www.mail-archive.com/mailop@mailop.org/msg24312.html
Re: iCloud Mail has DNS misconfigured?
#24Is this new? I've been using icloud with a custom domain for about a year and just had my first failure today with an address that I've actively been talking to all week.
Yes, I’ve been on iCloud 2y+ and saw my first failure today
Re: iCloud Mail has DNS misconfigured?
#25Re: iCloud Mail has DNS misconfigured?
#26A few years ago, when iCloud custom domains first launched, I found a bug where Apple would permanently cache the MX record. If an iCloud user had ever used a custom domain, future emails from iCloud to that domain would still get routed to their iCloud inbox—even if the domain’s MX record no longer pointed to Apple. They eventually fixed it, but didn’t think it deserved a bounty, which was a bit surprising.
I'm sure there's a ton of interesting surface area here.
Re: iCloud Mail has DNS misconfigured?
#27They also started using new IPs without PTR records to send out mail. Though so has Microsoft just recently. Both heavily frown upon that when receiving mail themselves. Do as we say...
I hate getting a report telling me my work domain is blocked because it is missing a PTR record and we use Exchange Online. I can’t do anything about that!
Re: iCloud Mail has DNS misconfigured?
#28Re: iCloud Mail has DNS misconfigured?
#29The only issue that I have with iCloud+ with my custom domain is about two gmail accounts which I don’t get mail from. It’s super weird.
My bizarre email issue is about gmail, not iCloud, but I'm hoping someone clueful can weigh in.
In my gmail inbox I periodically get very strange emails from mailer-daemon@googlemail.com, addressed to username+caf_=username=example.com@gmail.com
(where "username" is my gmail user, and "example.com" is the domain of a consulting client from a decade ago that gave me username@example.com)
The body of these weird messages says
Address not found Your message wasn't delivered to username@example.com because the address couldn't be found, or is unable to receive mail.
550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. For more information, go to https://support.google.com/mail/?p=NoSuchUser 6a1803df08f44-6ac070f1538sor47269616d6.5 - gsmtp
above an arbitrary supposedly-forwarded message like
---------- Forwarded message ---------- From: The New Yorker Daily To: username@gmail.com Cc: Bcc: Date: Tue, 28 May 2024 16:31:02 -0400 (EDT) Subject: The Secrets of the Stasi ----- Message truncated -----
Re: iCloud Mail has DNS misconfigured?
#30p00-icloudmta-asmtp-us-central-1k-100-percent-10.p00-icloudmta-asmtp-vip.icloud-mail-production.svc.kube.us-central-1k.k8s.cloud.apple.com is one hell of a name, though. Did you try postmaster@apple.com, hostmaster@apple.com, or icloudadmin@apple.com (not traditional, but given in their docs)?
i mean if if your never typing it which... i mean they never are its all automated most likely, why not have all the details they could ever need probably makes tracking issues and traceroutes etc much easier to deal with