Danny Boy wrote:

If I want to send an email with attachment (usually in Word, Excel or
Powerpoint) so that it is secure, and so that the attachment can only be
opened by someone who knows the "password" that we agree upon, is there a way
to do this?

I wasn't familiar with an available option in Outlook, or any specific
programs or coding that allow for this.

Btw, can emails themselves be password protected so that the intended
recipient has to enter an agreed upon password, just to read the content of
the email (as well as access any attached files included)? If this is
possible, than I wouldn't need to secure and password protect the attached
file if the recipient can't even access the content of the email itself
without a password.

Any suggestions would be greatly appreciated!

Dan

Have the recipient send you a digitally signed e-mail. That will include
their public key from their e-mail cert. Anyone can use that public key to
encrypt their e-mails but only the recipient has their private key to
decrypt them. After getting a signed e-mail from the other party, save
their contact info in your address book. That will save their public key in
your address book. When you later want to send them an encrypted e-mail,
use that contact record to address the e-mail to them and chose to encrypt
your e-mail using their public key. Only that recipient has the private key
to decrypt your e-mail encrypted using their public key.