Q. I have a client who wants us to use encryption for emails and attachments (not voice). Do you have a solution?
A. Thanks for asking. Your client has a number of fairly easy and low cost options.
• If they use Microsoft Office Outlook have them read this.
• Mac Mail. Read this.
• Thunderbird. Read this.
• Google Apps. Read this.
• Here are the 2015 reviews for the "Top Ten" 3rd-party email encryption programs.
• This is a good article on how to implement email encryption.
Not knowing the client, their needs, IT expertise, etc. I can't point them to anything specific, but the above links will certainly get them started.
Hope this helps,
Kevin