Proofreading

When sending emails to coworkers or clients it is very important to proofread your work.  Spelling errors can make you look unprofessional. 
Besides spelling errors it is also good to check to make sure you are using correct words, such as your, you're, there, their etc.  Make sure your sentences make sense and no words are missing or added by accident.
If it is an important email you may want to have someone take a look at it before sending.
It is also good to double check that your email does not send the wrong message.  It can be hard when reading an email to sense a persons tone.  Make sure to be clear about your message.
Once you've double checked and are confident it is all good, add your recipients and send away!

Spam and joke emails and work

Lots of people enjoy sending joke emails, or chain letter emails.  These are okay to send to friends or family, however in the work place it is definitely not ok.
In the work place you never know who may see these emails or who they may offend.  When at the work place it is best to keep all emails related to work and stay professional.

Beware of viruses

Viruses are horrible and can be very harmful to your computer, and possibly your friends or families computers as well.  They can corrupt portions of your hard drive, or even cause a complete failure of your computer.  Some viruses may even send out emails to your entire contact list and try to spread the virus to them.

Email is a very easy way to spread viruses around the internet.  There are many ways to try to avoid being a victim of a virus.

• Be sure to never open emails from unknown sources, if it doesn't look familiar to you, just delete it. 
• Also, never open attachments from unknown sources.  
• If an email from a friend or family member looks odd or suspicious, it's always best to contact them to make sure they sent it.
• Avoid forwarding email with attachments unless you know they are safe.
• If an attachment has an strange looking file extension it could be a virus.
• Don't click any weird looking links that maybe forward you to an unsafe website
• Last, but not least, always make sure to back up your computer once in a while just in case.