What is a p7s file and how do I open a p7s file?
Files with the .p7s extension are email messages used in email management programs for sending, receiving or just simply viewing secure emails encrypted with digital signatures. Some of these email management applications include Microsoft Outlook 2010, PostBox and Mozilla Thunderbird. This means these email management programs support the encryption and decryption of email messages in the P7S format. Files with the P7S extension also contain details including the source of the email and whether the email has been edited or modified during transmission, which means users with these email management applications integrated with P7S support can ensure that the emails they receive are legitimate, are originating from trusted senders and are untampered with, before they open and view the emails. If a user's email management software does not have P7S or email digital signature support, emails encrypted with this technology may be sent as attachments, usually displayed as smime.p7s, and these email programs integrate Public-Key Cryptography Standard #7 or PKCS #7 technology for digitally affixing encrypted signatures to email messages.
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Detail p7s file extension information:
File Format: Digitally Signed Email Message
Primary Association: Text Files
Mime Type: application/keychain_access, application/pkcs7-signature, application/x-pkcs7-signature
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How to open p7s file on Wikipedia
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