Exchange 2013 can produce IMAP issues when trying to authenticate. This is a known bug in CU9 and CU10 but in my CU12 scenario also happens.
The IMAPSettings EnableGSSAPIAndNTLMAuth atribute must be set to False in order to solve the problem.
Yesterday, when one of my users asked me how to configure the email client using IMAP I realized … Read more
When I was migrating my Exchange platform from 2010, I ensured that the backups using Veritas NetBackup were also working in Exchange 2013, both against the active or passive node of the DAG, and also the granular backups
At a certain moment, the backups started to fail (thanks I am monitoring the transaction log disks free space using … Read more
Stop using Outlook to export and/or import PST for your mailboxes. By using the Powershell commands (New-MailboxExportRequest and New-MailboxImportRequest) I have saved much time. And they come with some useful options.
Here some simple and interesting examples:
Simple mailbox export
[PS] C:\> New-MailboxImportRequest -Mailbox "user1" -FilePath "\\MYSERVER\PST\user1.pst"
The path must be an UNC path, a shared folder. After executing the … Read more
When export a PST using the New-MailboxExportRequest command, a UNC path is a mandatory parameter to set the target folder where the PST file will be saved.
Probably, that folder will not have the correct to permissions to allow Exchange to write into it, so the command would return this error:
[PS] C:\> New-MailboxExportRequest "user1" -FilePath "\\MYSERVER\PST\user1.pst"
Unable to open
… Read more
I created some room mailboxes in Exchange 2010 and gave book permissions to some users using EMC (Exchange Management Console).
Now, after migrating all my mailboxes to Exchange 2013, I need to change some permissions on the room mailboxes. But no way to perform the changes in the web console.
The only way to view and modify booking permissions is … Read more
Some users notified me that some external recipients could not open sent attachments.
After some tests I realized that the problem only appeared for external contacts.
When sending this email…
to a contact configured in the Active Directory, the Gmail web client showed this:
The same recipient without existing in Active Directory receives the email correctly:
My users notified that … Read more
As explained in a previous post (Exchange 2013 – Search results limited to 250), there is reported bug in Exchange 2013 that limits the search results to 250.
Microsoft released CU11 (Exchange 2013 – CU 11 released) that was supposed to fix (among others) this bug. Unfortunately, after updating and testing… no success.
I opened a … Read more
After migrating all my mailboxes, etc… to Exchange 2013, I am in process of uninstalling the legacy Exchange 2010 servers. Some minutes after deleting a public folder some users started to report issues with their Outlook clients… (emails stuck on the outbox, no new emails on the inbox…)
Checking the "Outlook Connection Status" I could see continuous connections and disconnections … Read more
An application started to log random error messages when trying to send emails through one of my Exchange receive connectors. So I checked and filtered the "Client Frontend" receive connector that showed at certain minute 6 email deliveries.
2016-01-12T17:49:00.530Z,EXCHANGESRV\Client Frontend EXCHANGESRV,08D31A7027871E90,3,10.20.20.5:587,10.10.6.10:59301,<,EHLO server1,
2016-01-12T17:49:00.811Z,EXCHANGESRV\Client Frontend EXCHANGESRV,08D31A7027871E90,43,10.20.20.5:587,10.10.6.10:59301,*,,Proxy session was successfully set up. Session for application1 will now be proxied
2016-01-12T17:49:01.155Z,EXCHANGESRV\Client Frontend EXCHANGESRV,08D31A7027871E92,3,10.20.20.5:587,10.10.6.10:59302,<,EHLO
… Read more
This post shows a Powershell script I use to monitor the status of my Exchange mailbox database copies and raises a critical alert if any of them is not "Mounted" or "Healthy".
The script takes advantage of the Nagios passive checks and the configurations shown on my previous post "Nagios – Using passive checks without agent".
Here is … Read more