<div>
Hi tigermatt<br />
<br />
As soon as I permitted 110 and configured port forwarding for POP3 to the mail server, BIS started working again.<br />
<br />
Thanks
</div>


Hi tigermatt

As soon as I permitted 110 and configured port forwarding for POP3 to the mail server, BIS started working again.

Thanks

<div>
<div class="content wysiwyg-content">
Hi<br />
<br />
I recently took over the management of a network with literally no security and my first task has been to put in place a cisco router with firewall. With this done our blackberry internet service has stopped working! Originally the mail server had a public IP address! now it sits behind the firewall.<br />
<br />
Does someone know what protocol / port number BIS uses to talk to the mail server? <br />
<br />
Thanks
</div>
</div>


Hi

I recently took over the management of a network with literally no security and my first task has been to put in place a cisco router with firewall. With this done our blackberry internet service has stopped working! Originally the mail server had a public IP address! now it sits behind the firewall.

Does someone know what protocol / port number BIS uses to talk to the mail server? 

Thanks

Blackbery Internet Service port numbers

BlackBerry is a line of wireless handheld devices and services designed and marketed by BlackBerry Limited. BlackBerry devices can record video, take photos, play music and also provide functions such as Web-browsing, email messaging, instant messaging, and the multi-platform BlackBerry Messenger service, and specializes in secure communications and mobile productivity.

BlackBerry

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.