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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.

For Example:

'user1' sets forwarding from local domain to external1 domain.

'user2@external2.domain' sends email to 'user1@local.domain' 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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