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I would suggest changing the policy to not quarantine "bad" mails, instead, use the policy word "DISCARD". But for p7s I would suggest stripping the attachment out, as these are signatures. However, they can contain S/MIME encrypted mails causing viruses to leak through. Stripping the attachment out and letting the rest through is safe. For p7m, pif, scr, ...


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You cannot change the certificate but you can revoke it and issue a new one; or, keep the old one and let it expire on its own while issuing a new certificate for future email messages. The issue with revoking a certificate would be errors occurring if a mail client checks for revocation. To avoid this you can just leave the early certificate as valid and ...



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