Push email utilizes a mail delivery system with real-time capability to push email through to the client as soon as it arrives, rather than requiring the client to poll and collect or pull mail manually.
With a push email smartphone, for example, the clients mailbox is constantly updated with arriving email without user intervention. smartphones announce new mail arrival with an alert.
Push is a mobile application which will allow users to access 5 emails in one mobile phone. Push is a product of Consilient, it adds Blackberry type functionality to normal mobile phones. With push one can access Yahoo Mail, Gmail, Hotmail, AOL Email and POP3 or IMAP accounts.
Consilient Push uses open standards (LEMONADE/P-IMAP). If you want to give it a try, just go to push site and register yourself, they will send a download for the application to your mobile phone via SMS, follow the link to download Push application. Now you can access all your emails from your mobile phone.
Push free servics is ad supported, if you are concerned about ads you can opt for premium version for $5/month subscription. It can be used on Nokia, Samsung, Motorola, Sony Ericsson etc. In windows mobile devices only one email will work.
Push email differs from conventional email systems that are pull oriented. Usually, when email is sent, it arrives at the recipients Internet Service Provider (ISP) mail server, where it is held for collection. It might instead arrive at a website server, if the email is Web-based. Either way, email remains on the mail server until the recipient uses an email program to poll the mail server. If new mail is present, the email client pulls the mail to the client computer. The difference between this scheme and push email is that, with push email, the mail is pushed through to the client without waiting for polling.
Therefore, polling should not be set so frequently as to cause premature time out errors. To prevent this, one must increase the delay between polling times. In many cases, a minute or two delay between pull email and push email schemes may not matter, but in some cases, a minute can make all the difference. Push email can be especially crucial to field reporters, stock market businessmen and other professionals for whom time is of the essence. A one-minute delay can make all the difference in breaking a story, losing money, or making a crucial sale.
BlackBerry was the first personal digital assistant (PDA) to offer push email and gained near-instant success as a result. Today, many devices have incorporated push email, and its popularity continues to grow. Some of the products that have incorporated push email include Chatteremail for Treo, Nokia Intellisync Wireless Email, Roadsync, and Sony Ericsson phones.