Emails delayed on device

If the pin messaages are also slow it is probably not your issue, call your provider.
I have had an issue that sounds the same and it was a setting at their end.

So pin to pin messaging is not using the BES is it? It's carrier only?

test the routing path of the email been received or send.  the header value would be containing th details and even at every hop receiving the email you can cehck at what time the email was received so you can check where the delay is happening. at any point in time the email is always received at the user home server so check if he is receiving the mail on tim eon its home server and the time difference.

is the email been received at the SMTP server on time chekc all routing path.  

if all other users are fine and the server is working ok and not under heavy load, then the issue is likely with the carrier, could be an APN or config glitch on their network.  contact your support rep and raise a ticket with them to fix.

you can also force change the APN link, by either removing the sim card from the device, power-up and leave it for a few minutes, then pull battery and re-insert sim & power on.  This will force the device to reset and build its network link again.  You can also force change your carrier network, so that its on SOS calls only and then set back to your actual carrier -- this should have the same effect and usually what your carrier gets you to do first, before they bump the call up to 2nd/3rd line support.

Thanks IainNIX, this fixed it below

"you can also force change the APN link, by either removing the sim card from the device, power-up and leave it for a few minutes, then pull battery and re-insert sim & power on.  This will force the device to reset and build its network link again"

Is this not the same as performing a reboot by removing the battery for a sec and then powering on with the battery on?

not quite the same, the 'missing' sim card, makes it drop all its known connections as their is no carrier uplink.  just a battery pull and restart can sometimes use the same known APN.

Thanks all.

Last question -

PIN to PIN messages being slow? What does this indicate? The PIN to PIN messages avoid the carrier though don't they? Or is it that they avoid the BES infra?

Ah ok - so if we ever have a problem and PIN-PIN messaging is fast, but normal email delivery is slow, we know that the issue is with the carrier?

Likewise, if the PIN-PIN messaging is slow as well, then ?

then you would have issues connecting to the RIM NOC and the carrier.  slow emails could also be caused by the BES server (if its perhaps over-loaded or having other network/DNS/firewwall issues).

So PIN-PIN messages avoid the carrier or the BES? Sorry, just not getting this point :)

pin to pin skip the BES -- still need to carrier to carry the data the last leg from the RIM NOC network to the handset.