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January 2012 Entries

Troubleshooting for Microsoft Exchange
Exchange is a complex and large product which can have one thousand and one possible issues, one more obscure as the next. The purpose of this guide is to shed some light, where possible, to how things work in Exchange (and outlook), how they can break and how you should approach the issue at hand. Unfortunately it is very time consuming to create a complete troubleshooting guide where every dependency is explained in detail. But that is not the aim of this document anyways. What is the aim? Give ......

Posted On Tuesday, January 31, 2012 11:12 PM | Comments (0) | Filed Under [ General Exchange Platforms ]

Recovery storage groups
As you might, or not, be aware off there is no item level based recovery in Exchange that is natively supported by Microsoft. So to perform recoveries we need the recovery storage group (captain obvious). The purpose of this is to mount the database you want to recover from on the Exchange server and use exmerge to merge the data you are recovering into the active database. An RSG will not be accessible to users and you can only create one at a time. Exchange 2003: 1. Open Exchange system manager ......

Posted On Tuesday, January 31, 2012 11:11 PM | Comments (3) | Filed Under [ Exchange ]

The information store service is stopped and will not start
This blog has moved to https://hornedowl.netTroubl... the information store service can be straightforward yet immensely complicated if you don’t know what is going on. For this reason I think it is important to know that there are 3 likely culprits that will cause your information store service to go down and refuse to come up: · Database problems · Active directory problems · Antivirus software Trying to work out which is the culprit can be hard, elimination is probably the easiest way to ......

Posted On Tuesday, January 31, 2012 11:11 PM | Comments (4) | Filed Under [ Exchange ]

Troubleshooting incoming mail flow (or the lack thereof)
Usually you’ll get alerted to this issue with a call saying that users have not gotten any new email for a while. They will still be connected to Exchange in outlook, you can still log on to the OWA and, when looking at your hub servers, you can see that the all services are up and running (Note that it is possible the transport service could be stopped…). A number of reasons can exist as to why you are not getting any mail flow: · Your recipient polies are not configured correctly · The receive ......

Posted On Tuesday, January 31, 2012 11:11 PM | Comments (4) | Filed Under [ Exchange ]

New users do not show up in outlook when in cached mode
A fairly common (and annoying) problem which seems to like to popup after migrations, yet not unsolvable. The key issue here is that there are new users added to the directory but they are not showing up in outlook. Now, if you are like most organisations then outlook will be operating in cached mode. So log in to OWA and test if you can see the new users there. I’m giving it a 99% chance that you will (and if you don’t you have a serious problem at hand!) The reason you are not seeing these new ......

Posted On Tuesday, January 31, 2012 11:11 PM | Comments (2) | Filed Under [ Exchange ]

Allowing internal services to relay through exchange
We all get those requests where there is a certain service that requires to send mails by using your company email server. Whilst an open relay is generally a way to get your domain blacklisted forever, allowing an internal relay is usually a necessity. By default Exchange is setup to deny relaying from any IP address, including your internal network. In this section I will show you how to allow relaying from your internal network. Exchange 2003: 1. Open the Exchange system manager 2. Expand the ......

Posted On Tuesday, January 31, 2012 11:10 PM | Comments (0) | Filed Under [ Exchange ]

Reseeding the passive node of a DAG/CCR
Running a CCR or DAG is a great way to have a server resilient database. Relying on an asynchronous copy of the log files (Each log file gets copied over only when the store has released it) it copies over the log files from the active node to the passive node so it can be played in to the passive nodes database. But whilst being a great failover solution both solution are also quite high-maintenance, CCR more so than a DAG. Running in to a situation where the CCR or DAG is down because of to many ......

Posted On Tuesday, January 31, 2012 11:10 PM | Comments (0) | Filed Under [ Exchange ]

Sopa to be revived and put in action in Ireland?
Remember SOPA? The proposition that could have turned law if the internet had not revolted against it? Well, Ireland might be getting it's own version of this law, only this time it won't be discussed in a democratic way, oh no, it will be pushed through to become a law by a "Ministerial Order" issued from no other then Sean Sherlock!If you believe SOPA should be stopped at all fronts, sign the petition. Tell other people. Remember that even the smallest drop can make an ocean move...http://blog.blacknig... ......

Posted On Tuesday, January 24, 2012 11:04 PM | Comments (2) | Filed Under [ General ]

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