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I sent a mail from my smtp server to gmail. The message-id that I got is: Message-ID: SMTPIN_ADDED_BROKEN@mx.google.com> X-Google-Original-Message-ID:

Gmail appended extra parts in Message-id.

All I got on google that it can be an authentication issue.But source of mail shows: SPF:PASS

But DKIM is not present in the source. Do we require DKIM to be necessarily present in the mail's source?? What can I do to prevent header from being modified?

satyam mishra
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2 Answers2

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the msesage ID will be modified only if it does not obey RFC standard. so send mail with correct message id format

Ranjith rajavelu
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    I got the same error and i really can't get my head around why google still adds it. My header looks like `Message-ID: `, which to my understanding matches the requirements from the RFC. – larscm Apr 11 '20 at 18:40
  • Did anyone resolve this, I am still getting this and can't see anything wrong with my Message ID either. – Jonathan Dec 27 '21 at 05:10
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    I solved the issue by surrounding the Message-ID with < and > brackets – Jonathan Dec 27 '21 at 05:25
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After many tries, I finally figured out that you need to add brackets enclosing the Message-Id

<yourid@domain.com>

Jonathan
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