A few times each week I become asked for guidance in relation to multi forward published by others throughout business time. Since it is an enterprise e-mail does that mean they no longer own it? Because an e-mail is written on business time, is not going to negate copyright and common courtesy.
In the event you copy the very first sender and/or ask if it is O.K. before forwarding their e-mail? Ccing doesnt negate requesting permission. E-mails are sent and written on the party in which they were intended, irrespective of when or where they are written and therefore are to not be brought to others without having the senders permission first. Period or risk the effects.
Now, as everyone knows, there has to be no expectation of privacy online. But that doesnt mean anything goes or that business courtesy is dumped the window!
You can be putting your business in legal jeopardy should you forward outside of the company and you could be putting your reputation being a professional on the line by forwarding internally. In operation, copyright issues are even more at play as well as every responsible company must have a plan about what can and really should be forwarded and just how via e-mail.
Common courtesy dictates you may not forward without having the original senders knowledge. They may not appreciate the e-mail they wrote for your needs being shipped to those they dont know. Or they mult1forward not mind in any way. So just ask!
Certainly it should go without stating that throughout company time the forwarding of shall we say anything questionable content-wise (NSF = Not Safe for Work) or not business related simply must not be forwarded by any means. Save those e-mails to your personal account throughout personal time.
To get more, I have a post with some extra general forwarding tips that pertain to business and private e-mails alike that you might find helpful: 5 Rules for Forwarding. Why not also look at my Copyright Refresher when you are at it?