MTA Is Rewriting the Boundary of Forwarded Emails and Breaking the DKIM Signature Validation
(Doc ID 2556475.1)
Last updated on SEPTEMBER 15, 2023
Applies to:Oracle Communications Messaging Server - Version 8.0.1 and later
Information in this document applies to any platform.
The Oracle Messaging Server MTA is rewriting the boundary of forwarded emails.
'user1' sets forwarding from local domain to external1 domain.
'firstname.lastname@example.org' sends email to 'email@example.com' and the email is received with the boundary:
This behavior breaks DKIM signature validation and causes email to go to spam or get rejected by external domains.
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