On 22-05-18 21:12, lists via Users wrote:> 22 May 2018 20:58:46 | INFO incoming; MailID: d6c60f00-eefe-47d9-be9e-cd8fc989034b; Recipients: [recip...@dest-domain.com]; Originator: sen...@sender-domain.com; Sender: sen...@sender-domain.com; Remote address: 192.168.100.252; Subject: test; Message-ID: > 22 May 2018 20:58:46 | INFO S/MIME message has been decrypted. MailID: d6c60f00-eefe-47d9-be9e-cd8fc989034b; Recipients: [recip...@dest-domain.com] (mitm.application.djigzo.james.mailets.SMIMEHandler) [Spool Thread #3]
[SNIP]

22 May 2018 20:58:46 | WARN Signature could not be verified. Message: Message 
content cannot be verified with the signers public key. 
(mitm.common.security.smime.handler.SMIMEInfoHandlerImpl) [Spool Thread #3]
22 May 2018 20:58:46 | WARN S/MIME signature was not valid; Signer IDs: CN=D-TRUST CA 2-1 2015, O=D-Trust GmbH, L=Berlin, C=DE/715FBC297CC280DEF937EF0AF42176B6/; MailID: d6c60f00-eefe-47d9-be9e-cd8fc989034b (mitm.application.djigzo.james.mailets.SMIMEHandler) > All certificates and chains are present in certificate store. Wy does the signature not get veified?

There can be all kinds of reasons why a signature does not validate. In this case the validation failure seems not to be caused by a missing certificate. It's hard to analyze without more information. From the logs it looks like you remove the signature. If possible, it would be helpful to get a message with signature attached so you can check whether some S/MIME email client things the signature is correct.

Which version of CipherMail are you using? 3.3.1-0 introduced support for RSASSA-PSS signing. If you use an older version and the message is RSASSA-PSS signed, verification will probably fail.

Kind regards,

Martijn Brinkers

--
CipherMail email encryption

Email encryption with support for S/MIME, OpenPGP, PDF encryption and
secure webmail pull.

https://www.ciphermail.com

Twitter: http://twitter.com/CipherMail

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