Automatically encrypt and sign outgoing mail
Dmitry G. Golub
dgolub at gdg.perm.cbr.ru
Thu Oct 27 06:44:22 CEST 2005
Faine, Mark writes:
> I've configured system account mail (root, postmaster, etc) to be sent
> to a user account and then that user account is using a .forward file to
> send the mail to my workstation where I can review it. I would like to
> do the same but include an encrypt/sign step into the process.
> I've created a key for the user who will send the system's mail.
> I've imported the key into the keyring of this user, signed it and set
> the trust.
> I've searched all day for a procmail recipe that would encrypt/sign the
> message upon arrival in the user mailbox but I've not found anything.
> I'd like to set it up so that the mail is encrypted and signed to my
> workstation gnupg key and then the mail is forwarded to my workstation
> email account. This way all the mail I receive from the system will
> always be encrypted.
There is a good program called email (http://email.cleancode.org) that
encrypts and sends mail in batch mode. So, you can make procmail receipt to
re-send this mail to your main account.
By the way, you can use it in crontabs, and you will have an additional
value: when the program has empty STDIN, it does not produce any mail.
I'm using it in crontabs of some system users. License is GPL.
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