On Fri 03/Mar/2023 21:39:46 +0100 Salvatore Jr Walter P via mailop wrote:
Thanks Mark. I sent an email as suggested and it came back as a fail for DKIM.
“I see you've included a DKIM signature. I've retrieved the public key from
1._domainkey.warwickri.gov
The signature failed validation. The Auth Result is fail.”
A failing signature should mean a header change. That's also what I get from
your posts on mailop, signature verification failed (otherwise would 've been
body hash mismatch). Can you turn on z= tags? Otherwise try carefully
comparing the signed fields, from: subject: to: date:, message-id: and the
signature itself.
Check that no other filters alter those fields after signing. Can you sign
messages off-line? Do Bcc: copies verify? (Use any off-line dkim verifier.)
Good luck
Ale
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