Question

How do I encrypt outgoing system emails via GPG on ubuntu 14.04?

I’m running a simple HTML website on Ubuntu 14.04 managed by Serverpilot (NGINX). The form on my (forced SSL) website uses a simple PHP mailer to send visitor messages to my external email account. Is there a way to encrypt all form entries via GPG (or PGP) before sending it to my external email account?

P.S.: I don’t mind if your method makes all system mails encrypted by default.

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I have a similar question. The article about GPG was tempting, but WHERE TO GET IT? Does anyone know what G P G stands for?


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I was able to locate a couple options for you to do this:

  • An answer here suggests using GNU Anubis to encrypt emails but this may require using SMTP for your sending rather than the php mail() function.
  • The answer to this question demonstrates how to encrypt the content of your message in PHP before sending it using GnuPG.