It turned out not to be an openssl issue, but a problem in our mail client (outlook). The mail was indeed modified: the mail was delivered with an application/pdf attachment into the mailbox, but the client only sees an empty attachment. Probably a Virusscanner removed it, we have to check, but that's outside the openssl scope.
Best Regards Michael Gsandtner MA 14 - Informations- und Kommunikationstechnologie www.wien.gv.at -----Ursprüngliche Nachricht----- Von: owner-openssl-us...@openssl.org [mailto:owner-openssl-us...@openssl.org] Im Auftrag von Gsandtner Michael *EXTERN* Gesendet: Mittwoch, 26. Juni 2013 14:27 An: 'openssl-users@openssl.org' Betreff: smime verification failure # openssl smime -verify -in mail.smime -CAfile A-Trust-nQual-03.pem Verification failure 3086427788:error:21071065:PKCS7 routines:PKCS7_signatureVerify:digest failure:pk7_doit.c:1097: 3086427788:error:21075069:PKCS7 routines:PKCS7_verify:signature failure:pk7_smime.c:410: # openssl version OpenSSL 1.0.1e 11 Feb 2013 Any hint locating the problem welcome. Best Regards Michael Gsandtner MA 14 - Informations- und Kommunikationstechnologie www.wien.gv.at ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org