Ask if they'll let you send text and zip files as attachments instead. You just save the file, use the encrypt file option, an encrypted file is generated, and

Ask if they'll let you send text and zip files as attachments instead. You just save the file, use the encrypt file option, an encrypted file is generated, and attach that to the email. The receiver does gpg -d (file). It's how I use it. Let's me ignore most of GPG complexity and its potential risks. Also, I use zip with obscure names to hide content type. Just make extra, extra sure you click the encrypted file in attach dialog, not original. It can help to put them in different directories.