2012 MarchJaapWesselius.com | JaapWesselius.com

Monthly Archives: March 2012

Exchange 2013 coexistence, EAC and ECP

When you introduce Exchange 2013 into an existing Exchange 2010 environment and you want to open the Exchange Admin Center (using https://localhost/ecp or using https://webmail.contoso.com/ecp) it ‘fails’ and it opens the Exchange 2010 ECP instead. This is caused by the … Continue reading →
Lync 2013 and Exchange 2013 Unified Messaging

In earlier blog posts I’ve written how to install Exchange 2013 and in another series of blog posts I’ve written how to install Lync Server 2013, including connectivity with a SIP trunk provider using a Lync 2013 mediation server. The … Continue reading →
Installing Exchange Server 2013–Part I

Exchange server 2013 consists of two server roles, the Mailbox Server (sometimes referred to as the back-end) and the Client Access Server (sometimes referred to as the front-end). All clients connect to the CAS Server and the CAS Server proxies … Continue reading →
Deploying Lync Server 2013

In a earlier blog post I explained the basics of Lync Server 2010 and how to install Lync Server 2010, including a Lync Edge Server and a reverse proxy to publish the accompanying web services. Microsoft has recently released Lync … Continue reading →
Load Balancing in Exchange 2013

I wrote about load balancing in Exchange 2013 earlier, but that blog was based on the beta of Exchange 2013. Time have passed and there’s some more insight so I decided to update this blog… In an earlier article I … Continue reading →

UC Technical Rollup March 2012

Posted on March 23, 2012 by jaapwess

Attached the March 2012 Unified Communications Technical Rollup. It contains information regarding Microsoft Exchange, OCS/Lync, Outlook, Forefront and other Microsoft UC related techologies, newsletters, knowledgebase articles, new downloads, webcasts etc.

Posted in Newsletter | Leave a comment

POP3 Server Unavailable. 21

Posted on March 15, 2012 by jaapwess

Recently I entered the dreaded -ERR Server Unavailable. 21 error on an Exchange Server. The strange this was that this did not happen to all mailboxes but only to a couple of mailboxes. Nothing written in the eventlog, just –ERR … Continue reading →

Posted in Exchange | Leave a comment

Telnet for POP3 and IMAP4

Posted on March 9, 2012 by jaapwess

For testing purposes it is useful to know how to use TELNET to access a mailbox using the POP3 or the IMAP4 protocol. Suppose you have a mail server running with POP3 and IMAP4 enabled and you want to give … Continue reading →