Q: problems with OS EL Capitan

Hello dryan12,

Thanks for using Apple Support Communities.

I see that you are having trouble printing and connecting to your email server. I use my iMac to print documents and send emails all the time, so I know how important it is we get this corrected. I have a couple things for you to try. 

First, use OS X El Capitan: Printing troubleshooting, if you're having trouble printing, specifically, this section:

If you’re having trouble printing, first try these suggestions:

• If your printer is connected to your Mac, make sure it’s firmly connected, plugged into an electrical outlet, and turned on.

• If the printer is on the network, make sure your Mac and the printer are still on the same network, the printer is turned on, and the network isn’t experiencing problems. If the network has multiple printers, check which printer you chose—it may be different from the one you think you chose. 

• If you use a shared printer connected to another Mac, make sure the Mac has Mac OS X v10.5 or later, isn’t in sleep, and has sharing turned on. For more information, see Share your printer. 

• If your printer is connected to your computer’s USB port, open System Information, then click USB. If the printer’s name appears in the hardware list but the printer doesn’t work, review the printer’s documentation for further troubleshooting information or see Check your device’s USB connection.

And for resolving issues with email, I recommend taking a look at these two resources:

1. Use Mail Connection Doctor

2. If you can’t send or receive email on your Mac

Best Regards.