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Old 08-19-2019, 11:21 AM   #1
Märk Owen
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Registered: Nov 2014
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PGP encrypt outgoing email (Postfix)


Hi,

I've setup postfix as relay on my server so the machine could send me automated emails to my external email address.

It works but I'd like to PGP encrypt the content (and object if possible) of the email sent to me but I'm having trouble finding information about it.

All I could find was gpg-mailgate which apparently hasn't been updated since 2013.

Is there any way I could achieve PGP encrypt for outgoing email with postfix (no incoming email) ?

Thanks.
 
Old 08-19-2019, 08:25 PM   #2
phil.d.g
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Registered: Oct 2004
Posts: 1,259

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I'm not sure you're going to find too much support for that use case.

PGP encryption/signing of mail is primarily used for transmitting information between two people, and allowing the recipient to guarantee the sender that claims to have sent, sent it, that what was sent is what was received (signing), and, if necessary it was protected from prying eyes (encryption). As such, encryption/signing/etc is typically done in the specific user's mail agent, rather than at the SMTP server.

You would need whatever creates the automated email to sign/encrypt before sending it to postfix for further transmission.
 
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