But you wrote VIEW the attachments. That is, the attachment arrives but they need help in configuring their system to view such.
In other words, you have a PC support problem.
I have a client who uses a Yahoo email account. I send emails to this account on a regular basis and every time the client is unable to view the attachements of the first email sent. Every email I send after the initial file sent is delivered with no problems, but the first email with attachments never delivers the attachments, just the email. Any ideas?
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.