Exactly! Just use OpenPGP! Once you've set up OpenPGP for all developers and operators that deal with secrets and production databases, it is a piece of cake to simply click the 'encrypt' button in the e-mail client whenever you need to share production log files or other potentially sensitive information with colleagues.

In an ideal world sensitive data never leaves the production environment or the machine of the developer or operator working on it, but sometimes things break down, and you need to share information to find out what went wrong, as soon as possible, with colleagues who are not necessarily physically nearby. It is best to have these tools set up and part of your work flow when you do need them.