Employes in our company can also recieve their company emails through their blackberry. they are all provided with blackberry cell phone, t-mobile service with BIS service to send and recieve email.
I know the difference of BES and BIS, we are not set up with a BES. Our BIS is set up using our OWA email access/socket, BIS also alows us to set up personal emails such as yahoo.com or gmail.com. What everyone notice is that it take about 10 mins to send and recieve emails to and from their blackberry, respectively. So there is always a 10 mins delay when recieving an email with the company email account. However with gmail.com or yahoo.com emails are recieve/sent almost an instant.
So, i am assuming that our exhange server is delaying the incoming and outgoing emails. I don't know it could be the security settings; i don't know...i hope someone knows something about this.
when i check my email using OWA and a computer, incoming/outgoing mail are delivered in an instant; why not the phones? I thought it would be tmobile's service, but I know a company who was the same set up as ours recieve their email in their blackberry in an instant. Also, emails recieve in gmail.com and yahoo.com are almost instantaneous.