Blackberry Phones No Longer Receiving or Sending Emails

ask the users to hard reboot the phone
if not working reset the users enterprise password  and sync it agian.

Thanks
Strange that all 4 would affected at once. It is not using Blackberry Enterprise Software

Emails in BB's rely firstly on BB services to run properly. These services pass through your provider too. That's for personal and "simple" email (POP/IMAP). Of course, the email provider has to work properly too.If company email is used, it also relies on the BB server software too (supposedly installed in the same domain as the company mail server).
As you can see, for normal operation, your rely on BB, network provider and either your email provider or your own server. Since you mentioned you didn't have a BB server (are you sure? ask your IT manager?), there are still 3 things to check (check if BB, your network provider or your email provider has an outage).
I think this is the reason why BB is a dying breed though (as now other systems require less management scattered throughout while still providing push email). Android with Gmail has PUSH email, and when something doesn't work, you pretty much know where the problem is (it's either no network connectivity or it's a Google problem, very easy for a simple user to find out. If a BB or network provider, or BB server has an outage, you couldn't really tell, as you have no real way to check it)

Thanks. I suspected the Blackberry service first of all. That is my understanding of it, that it uses the Blackberry
service first. There is definitely no Blackberry software on the server. Email is Ok on the desktop computers.

That leaves the BB service, either with BB themselves, or your network provider (means you still have to make 2 calls)

The phones have been working ok for a year with the exchange server, and nothing has been changed.

Usually, if you mention Exchange and BB in one sentence, it actually means you DO have BB server software installed in your network. Especially if before, if you moved an email in your Outlook to another folder, it would be moved inside the BB too, a few seconds later (or if all your contacts are perfectly synced with your Outlook). This is only possible because the Exchange server is talking to your BB THROUGH the BB Server software and hence through BB and BB services.
In this case, you still have to check your own BB server (which might reside on the Exchange server, or as a seperate server in the network).

No, certain there isn't. the Blackberries were set up to connect to the exchange server using the add email account option,
and then choosing exchange

Hi,

Can you please confirm few more things here.

- What Exchange version.
- What is the Blackberry Models ( are they the new Blackberry 10 devices or the OLD blackberry devices ).
- What email you users are not able to receive. ( Is it the Exchange email or any other emails which you are talking about).

Based on the above quetions we can continue to troubleshoot.

Cheers,
Doertalk.

The problem was caused by the blackberry service