Someone please tell me how to make attachments on my Mac-generated e-mails that everyone with a PC can reliably open and view?

I just sent some important photos to a large list of family members and although a few are seeing them ok on PC's, many say they can't. This has happened before with Word documents: some can read and some can't.

As far as I can tell, the only two variables are the format of the attached picture and the encoding scheme used for the attachment by the e-mail program (Outlook Express).

I am saving them in my Nikon photo editor as jpeg format and when I send the emails, I am using UUencode as the encoding scheme.

Should I be using a different encoding scheme that's more universal? I have tried some others in the past with even less luck.

Thanks!

As far as Word (or other) documents go, this is just a guess, but I had similar problems with my wife's Word 97 documents from school. It turned she didn't have any version of MS Word on her computer at all. When I put it on for her then the Word documents worked.

I have had problems with jpg/jpeg pics myself. With pictures sent to me, or ones I find on the internet, sometimes my computer will open them for edit, and sometimes I cannot open them. I don't know what is the true problem, or I would fix it for myself on my computer.

However, when I cannot open, if I only need to view anyway, I have to find what program to look at it with. Sometimes I even have to use my Internet Explorer browser.

And, just clicking on the attachment might try to open the picture with an editor or viewer which won't work with that particular attachment.

Some things I could not see correctly (or at all) on my old Windows 95 pc work just fine on my newer computers with Windows XP running on them.

Just some suggestions of things to look into. Sorry I can't be of more help.