Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Share tech news, updates, or what's on your mind.

Sign up to Post

 I have an user who uses Road Runner (now Spectrum) email service ( and I like to to get him moved over to Microsoft hosted exchange service with domain name ( so that his email resides in MS cloud server and his iPhone (via Exchange account) and Outlook software can synchronize the data in the cloud all the time. However he does not want to spend money ($4/month for hosted exchange, domain name $15/year via Godaddy = $53/year).
Does Gmail provide something similar to Microsoft Hosted Exchange service where he can sync up his Outlook and iPhone?

Problems using Powershell and Active Directory?
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

how can I find user user4aa0a666?
Any advice regarding event id 9646?
How to troubleshoot?
Event ID-mailbox server
All of sudden all my databases are in dismounted state and I try to mount the databse then I get below error. Can any one please guide me on this?

WARNING: Unable to get Primary Active Manager information due to an Active Manager call failure. Error: An Active
Manager operation failed. Error: An Active Manager operation encountered an error. To perform this operation, the
server must be a member of a database availability group, and the database availability group must have quorum.
Error: Automount consensus not reached.
My organization is currently in a hybrid setup with Exchange Online and 1 on-premise Exchange 2013 server.  We would like to move to Exchange Online only and remove the hybrid setup.  Since it sounds like you must keep a hybrid as long as you're using DirSync, would this scenario work?

1. Remove Centralized Mail Transport by re-running the hybrid configuration wizard (we no longer need mail to flow through our on-premise server).
2. Get the management version of Exchange from Microsoft (I'm assuming this is a stripped down version of 2016, which would be preferable to just keeping Exchange 2013), and install that on a VM.
3. Uninstall Exchange 2013 using the control panel.

I have never had more than one on-premise Exchange Server, so I'm unsure about the complexities of introducing one temporarily so our on-premise Exchange could be virtual.  Any insight would be greatly appreciated.
Hello Experts

We are getting the attached certificate error in Outlook.  We can click on "yes" and Outlook works fine. I have tried installing the certificate but message comes back next time Outlook is closed/reopened.  It seems the certificate is from cPanel and is expired.  Not sure who cPanel is and how to get an updated certificate.  See attached certificate info.

We are using Exchange Online (Plan 1) from Microsoft with Outlook 2010/2013 on desktops,

We have 4 users that are using Office 365 Premium with Outlook 2016 and they do not get the error.

I'm also getting event ID 36886 on one of the 2012 domain controllers, not sure if this is related.

Event Type:      Warning
Event Source:      Schannel
Event Category:      None
Event ID:      36886
Date:            3/20/2018
Time:            7:22:12 AM
User:            NT AUTHORITY\SYSTEM
No suitable default server credential exists on this system. This will prevent server applications that expect to make use of the system default credentials from accepting SSL connections. An example of such an application is the directory server. Applications that manage their own credentials, such as the internet information server, are not affected by this.

For more information, see Help and Support Center at

Any help is appreciated.

Hello Experts - I'm trying to figure out a powershell command that will grant reviewer permissions to a conference room calendar (which is setup as a resource) for a specific group of users.  I've done this on individual user accounts using the following but get an error with this account:

Add-MailboxFolderPermission "Media Conference":\calendar -AccessRight reviewer -User "Media Office"

I get the error:  A positional parameter cannot be found that accepts argument :\calendar

I'm guessing this is because the object is a resource but I'm not sure, can anyone help with the syntax?
Hi Experts,

I have 3 exchange servers in a DAG EX2013.
On one Server I can connect via POP and IMAP but not on the others.
When I test via TEST-IMAPCONNECTIVITY just on my EXCH02 I get an SUCCESS event.

Any ideas why it s not working on the other exchnage servers ?
I  am confused how DAG in exchange 2010/2013  is different from CCR, LCR , SCC in exchange 2007

I believe CCR, LCR, SCC uses failover clustering while DAG doesnt
can some body explain regarding hybrid deployments with exchange 2013 and exchange 2007/2010

and fundamentals of mobile access to exchange 2007

what is the difference in client access role in exchange 2007 vs exchange 2010
Dear Experts,

In my environment AD is configured in Windows server 2012 and also exchange 2013 is also installed . I need to give some rights to 5-10 users. Rights are creating users , editing , deleting , password reset ,create new mail id's or do the editing in exchange server and also create new group policy. I don't want to give them the full admin rights.

My second question is when i am trying to connect the remote server through one of the domain user i get the below error;-

“To sign in remotely, you need the right to sign in through Remote Desktop Services. By default members of the Administrators group have this right. If the group you’re in does not have the right, or  if the right has been removed from the Administrators group, you need to be granted the right manually.”

Free tool for managing users' photos in Office 365
Free tool for managing users' photos in Office 365

Easily upload multiple users’ photos to Office 365. Manage them with an intuitive GUI and use handy built-in cropping and resizing options. Link photos with users based on Azure AD attributes. Free tool!

I updated our exchange 2013 version to CU19 we are running on 2012 server. The install went on fine it didn't fix the issue we were having and it created at least one more issue. The emails are flowing internally and externally fine, but when I have my outlook open (2013) I can not use the search box. So I'm in my inbox and click in search type in whatever I'm trying to locate and it comes back with 0 emails. Any ideas on how to fix this would be appreciated
We use Exchange OnLine and Outlook 2013. One of coworker left the company, so his account was deleted from Exchange. I have a copy of his ost file. How can I convert his OST to PST, so that my company can access to his email messages without having his Exchange account.  Thank you very much in advance.
New to O365. Yesterday I altered permissions for a Public Folder shared folder that has calendars in it. I only altered one users permissions in one calendar. Today, I notice the changes I made were ignored / didn't stick. I also yesterday trued to alter a mail flow rule and it just would not stick with what I had altered. Today, I had to delete the rule and recreate it, and that worked. Is that portal flaky sometimes?
We're on Exchange 2010, and some of our Outlook 2010 users are getting this error below, when sometimes sending to ONLY ONE recipeint:

[Postmaster] Email Delivery Failure

This is a delivery failure notification message indicating that an email you addressed to email address :
[replaced email address for privacy]   could not be delivered. The problem appears to be :
-- Bounce - Recipient server condition

Additional information follows :
-- Too many invalid recipients

This condition occurred after 1 attempt(s) to deliver over a period of 0 hour(s).
We have a Throttling Policy in Exchange 2010 that sets the RecipientRateLimit to 1000.  We have a user that got a virus and was sending tons of emails.  Well he hit the rate limit and now is unable to send email for 24 hours.  

Now that we've cleaned up his device and changed his password, is there a way to reset the RecipientRateLimit count for this individual?

We are having an issue with sending emails out to just one location. Sometimes they are delayed and sometimes they don't get there at all.
We are not having issues sending to any other outside locations but this one.
Is there something I need to change with the exchange server to stop this from occurring?
The server is running exchange 2013
Hi I have to do system architecture diagrams for environment

Its very documentation heavy, have to cover VMware, Active Directory, 2008R2 forest mode and on premise Exchange 2010

Is there any guidelines people would recommend i realise its a general query

For instance are there free tools that provide mapping which i can use with visio

I have seen the free stencils Veeam provide and they look good

I am looking to do high level overview then go a bit deeper and also include support documentation which will be a lot more straightforward

Any pointers appreciated
Dear Experts, I have one AD (server2012R2) and one Mail Exchange 2016 server. When I configured the complexity of password in AD and applied it with "gpupdate /force", the policy could not applied in Exchange mail users. They can still change the password with simple phrases. For example: no need special characters, or number,...

Can you please explain and suggest?

Many thanks!
I am migrating from SBS 2008/Exchange 2007 to Office 365.
I have chosen to upload .pst files for my mailboxes (i only have 10). I am using one very small mailbox as a test to get started.

My problem is that after I have imported the PST file, the contents of the user's mailbox are empty. No mail seems to have been copied.

I created the PST files using a 32bit Outlook 2007 client with Exchange PowerShell Export-Mailbox cmdlet. and followed the instructions here:

Everything worked perfectly. I had created a new user in office 365 prior to uploading the pst file and given that user an Exchange Only license. I mapped the PST file to the user I had previously created. That seemed to be successful.

When I look at the mailbox usage for this user in Exchange Admin | recipients | mailbox users I see that the a small amount of the 50GB has indeed been used. However, when I log in - separately, on another computer - to outlook no messages have been copied. There are no filters set on outlook.

So it looks like the mapping is working correctly, because some of the mailbox space is definitely being used. But the messages are not visible.

Can any one tell me what I might be doing wrong?

By the way - when i set up Exchange in the first place, i added my domain names, but I didn't move the DNS records to point to Office …
Easily manage email signatures in Office 365
Easily manage email signatures in Office 365

Managing email signatures in Office 365 can be a challenging task if you don't have the right tool. CodeTwo Email Signatures for Office 365 will help you implement a unified email signature look, no matter what email client is used by users. Test it for free!

Powershell Script to get mailbox size in MB for list of users in a CSV file with only Samaccountname
I have 2 sql servers,  old and new.  They are external servers, not on my LAN, but there's an always on VPN, so they behave like they are on my LAN.
 With my old server, I can use the feature "database mail" to send a test email.
On my new server, that doesn't work, and I even am using the exact same configuration.

Any ideas why?  Is there a way to check the detailed logs, as I don't think sql is sending the emails.

1. checked the msdb database, table sysmail_log, and nothing there with errors, no entries there.
2. I checked my corporporate firewall and it's configured correctly as far as I can tell.
3. I checked my exchange server (hosted internally), and it's configured to allow my external sql servers to send emails.
4. I checked and did a test from the server and that worked fine.  

What else can I try to get the "database mail" feature to work, as I need my sql to start ending emails.
Is there a way to apply conditional formatting in Outlook when the targeted email address is the non-default email address for the mailbox.

default address is
secondary address is

So I would like to highlight the email in another color if it was sent to
I have a client who often sends (exchange) external  e-mail to couple hundred recepients in single mail
and there is a problem because some recipients sends  error "dsn=4.0.0, stat=Deferred: Connection refused by  remotehost."

I presume that is because of mass mailing?
What is the best practices for sending this kind of mails(couple hundred recepients)?
A public folder added to "favorits" does not show subfolders within Outlook.

I have a real strange issue which seem to be a general problem because I can replicate this on multiple systems with different Exchange servers and different version of Outlook.

I have a public folder called SALE. I have created multiple subfolders.
I browse to this Public Folder, right click and choose add to favorits. I choose properties and check that I want to see subfolder + later created sub folders. Then I go to the "favorits" right click and chose "Show in Favorits" to make the Public Folder visible in the upper left corner of Outlook under FAVORITS.

The problem is, that even though I checked the "Show sub-folders" no sub-folders is visible within favorits.
The Server is an Exchange 2010 but I have seen this issue also with Exchange 2013.
I sent an email from my domain to google and i found the error when i go to original message

spf=permerror ( permanent error in processing during lookup of not found)

spf record = v=spf1 a mx ~all

spf=permerror ( permanent error in processing during lookup of not found)

spf record =v=spf1 a mx ~all

requesting assistance and how i can solve this






Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Vendor Experts

Sandeep KumarKernel Data Recovery Learn more about Kernel Data Recovery
Naveen SharmaKernel Data Recovery Learn more about Kernel Data Recovery