Need Sample Rejected Due To "HELO command rejected" by iCloud

sisimai / set-of-emails

bounce mail collection for tests and development on Sisimai

https://libsisimai.org/

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Open azumakuniyuki opened 5 years ago

azumakuniyuki commented 5 years ago

MXes of iCloud reject an SMTP connection which a hostname of HELO/EHLO command argument could not be looked up A resource record.

450 4.7.1 <neko.nyaan.jp>: Helo command rejected: Host not found