I hate to come throw out a somewhat general question, but all day today I've noticed message delivery delays from 10-25 minutes.

BES 4.1 for Exchange, fully up-to-date
MSDE on the same box
Exchange 2003 clusters

Typically our message delivery times are very quick, which is why today stands out as out-of-the-ordinary.

No hung agent messages in the event logs. I've turned off/on my mobile connection and also rebooted the smartphone. Each time it seems to bring in the latest messages, but then sync is intermittently delayed again.

Ideas?

how many users on BES and Exchange?
What tpe of disk structure?

Av or backup running?

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Torch 9800 on BES 4.1.6 MR7, Exchange 2003, SQL 2005.
WES 2009-2010 Survivor

Just over 200 users.

FYI, I neglected to mention that we're pretty much exclusively Verizon Wireless.

It looks like our message delays were related to the VZW service degradation that went from 1/20-1/27.