There is a major parallel service being offered and utilized on the World Wide Web, which not many are aware of, but which therefore serves its own purpose. This is the ability to surf the internet anonymously. Keeping one’s identity hidden from online probes and identity detectors is possible. Many websites and applications offer this service, and include free trials too.
Yes, it is possible to send anonymous e mails without sending your IP address with the help of proxies, VPNs and Paid Proxy Services. These services allow you various features depending upon each one. These may be the ability to control the Java script, disabling or intercepting cookies, options for SSL encrypting of all your web traffic, encrypting of all URLs, including URLs of images, Style sheets, Java Script files, multimedia and more. You can hide the name of the website from the memory of your browser, disable browser caching as well as manage your own private bookmarks. There are plenty of other services and options offered by these proxies and VPN services.
These are useful because most companies keep a tab on the employee communications while at work. Therefore, anonymously surfing the web at work can be a smart thing to do. Also, you can bypass many restrictions that companies have on certain websites with the help of such tools. You can also utilize these services for when you do not want your family members or house mates to know about the various websites that you visit. Whatever your reason, keeping your identity safe on the web and also hiding away your browser memory can be done as mentioned.
Many websites offer this service. Prominent among these is hidemyass.com, behidden.com, proxymafia.net, proxy2hide.com, proxify.com and netcloak.com. there are many more, of course, and a simple browser search will let you know more. Hidemyass not only changes and hides your IP address, it also offers to hide your identity from hackers, insecure connections, online identity thefts and lots more. It has Pro VPN, free web proxy services, IP: PORT proxies, free file and image hosting, free anonymous email and anonymous search too.
For VPN proxy service, there are certain websites like hideipvpn.com, vpnprivacy.com, blacklogic.com, megaproxy.com, trilightzone, vpnmessenger and vpnaccounts.com, which offer you their VPN services to access safely various websites, browser searches, videos, music online as well as to send anonymous e mails. Encryption and security procedures are employed to make these services totally safe, anonymous and protected. The paid VPN services even offer technical support and customer care in case of any questions, problems or emergencies. Most of these do not even need installation of any special software. Off shore proxies are also available.

Very useful article.