iCloud+ Custom Email Domain has “too many hops” and undelivered mail
| Originator: | benjamin.chait | ||
| Number: | rdar://FB9576843 | Date Originated: | 2021-08-29 |
| Status: | Open | Resolved: | |
| Product: | Product Version: | ||
| Classification: | Reproducible: |
Using iCloud+ Custom Email Domain, a third-party received an error when attempting to send an email. ### Your message cannot be delivered to the following recipients: Recipient address: [redacted] Reason: SMTP transmission failure has occurred Diagnostic code: smtp;554 5.4.0 Error: too many hops Remote system: dns;smtpout.mac.com (TCP|172.17.0.2|54347|10.112.84.233|25) (iCloud SMTP - mr85p00im-zteg06011501.me.com 3.5.0 [2116B30-0009dff0785a])
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