Email Push for an email account that is not mobile me

Question

Hi There; I have an iphone 3GS where I use 4 different email accounts and calendars. I use 2 mobileme accounts, I use a gmail account and I use a private server account. I used to have a Blackberry Bold and never had any problem. Everythong works fine except for the private server account. Sometimes I get the email in my iPhone even a day later, sometimes I don't get them. But I always get them in my iMac. Can somebody guide me in how to fix that issue or if there's any push email software that really work for the iPhone...I'm getting emails way tooo late compare to the mobile me ones. By the way, I have it set the same way I have set in my computers, POP. Please help, I really don't want to go back to Blackberry, I like my iPhone sooo much!

Answer 1

Different from the Blackberry's email application, the iPhone's Mail application communicates direct with the incoming mail server for an email account - no different when accessing an email account with an email client on your computer.
RIM provides a dedicated email delivery service for the Blackberry which provides Push access regardless the account type.
With the iPhone's Mail application, the email account provider/email account must support Push access. The following email accounts support Push access for received messages.
MobileMe.
A Yahoo account created with the Yahoo account preset, which creates the account as an IMAP account with Push access for received messages.
An Exchange account accessed via ActiveSync with the Exchange server for the account.
A POP account does not support Push access when accessed with an email client that communicates direct with the incoming mail server such as with an email client on your computer or with the iPhone's Mail application. The only reason Push access is available with a POP account with the Blackberry's email application is due to RIM's dedicated email delivery service for the Blackberry.
Although it is possible to access a POP account with more than one email client, a POP account is designed to be accessed with a single email client only. Do you leave the email client used on your computer for accessing the POP account launched and running actively checking the incoming mail serve for new messages while your iPhone is doing the same? If so, this is likely the cause of the problem. Different from an IMAP account, only one email client at a time can access the incoming mail server for a POP account. If two email clients are actively running checking the incoming mail server for new messages and downloading new messages received at the server with a POP account, the 2nd email client will be temporarily locked out by the incoming mail server for the account when another email client is doing the same.