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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.

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We started Office 365 Essential 2 years ago aiming for the Cloud and Web services like Exchange and SharePoint. Due to budget limitation we kept using Office 2010 on Office Desktop PC. Now Office 2019 is released and Microsoft announced the end date for connectivity of Outlook 2010 to Office 365/Exchange Online.

Upgrading to Office Business Premium should be a natural way. But someone suggested purchasing Office Home and Business 2019. The initial cost is of course more expensive than recurring Office 365 subscription fee. But doing the calculation means break even after 3 years. If we can use Office 2019 for another 9 years like we did with Office 2010, this sounds a bargain!

We are an office of around 40 persons, all use Desktop PCs and need only Word, Excel, PowerPoint and Outlook linking to the Office 365 Exchange Online service. So feature-wise look feasible.

Can anyone share some experience or thoughts about pros and cons of running Office Home and Business version with Office 365? What would be some setbacks or limitations with such arrangements? Say in areas of usage, system administration, registration, patch updates, etc...
Outlook 2013 - exchange issues

Have outlook setup with an exchange mailbox. then another shared mailbox. every now and then we go to access the shared one or even the mail account and it says it cant be displayed. Has cached mode enabled and everything.
have to close down outlook and open again for it to display messages... any ideas?

I have tried to recreate the outlook profile but same issue.
We are running Exchange 2013 CU15 Hybrid. We have recently installed Exchange 2016 CU4 in our environment. Created virtual directories same as Exchange 2013. Everything is working fine internally. OWA user can login to their mailboxes either on Exchange 2013 or 2016. But external OWA users whose mailboxes are on Exchange 2016 getting bad request error. Users with mailboxes on Exchange 2013 can login fine.
I need some help with this, I have 3 users that when multiple users with different email providers send them emails they get this bounce back. not with all the outside users happens either. other Users inside my organization have no problem receiving from this users. i have checked their blocked senders list, spam folder and filter. I run this command from the power shell (Get-MailboxJunkEmailConfiguration  username).blockedsendersanddomains and i see just one adress in one user not related with the bounce backs, the other two users have no emails blocked.

The response was:

550 permanent failure for one or more recipients (user@domain.com:blocked)

Final-Recipient: rfc822; user@domain.com .com
Action: failed
Status: 5.0.0
Remote-MTA: dns; d91072a.ess.barracudanetworks.com. (an IP the company does not have., the server
 for the domain domain.com)
Diagnostic-Code: smtp; 550 permanent failure for one or more recipients user@domain.com:blocked)
Last-Attempt-Date: Mon, 01 Oct 2018 10:27:32 -0700 (PDT)

any help would be appreciated as i have no more ideas on this.
Dear Wizards, one of my SAN volume has only 800 GB left and I'm afraid it is not enough until the end of this year. On that volume, we have 3 VMs with total 9 TB in data size and it is growing everyday (Mail Exchange server)

Is this enough for Veeam to create Snapshot? since I saw the notifications of SAN storage this morning.

One more thing, can you please suggest the model of SAN expansion? or something else that we can use to increase the SAN storage?

- Vsphere 6.5
- Veeam 9.5
- SAN Storage HPE MSA2040
I want to know if retention policy is working on exchange online does it generate a reports or logs that show this email was deleted due to it reach it retention policy after 6 months old it will be deleted. Please help ASAP !
I want a quick answer only

Can the admin of Office 365 Exchange Online Plan 1 Subscription search and delete emails sent to a user without using the email recall function?

I have read some MS articles saying that the above can be done using Powershell cmdlets but I can only search the emails sent to a user and cannot preview or delete the emails.
Does anyone know how to tweak Office 2010 so it will connect to Office exchange 365 server?
I have an SBS2008 server running Exchange Server 2007 with 10 workstations running Windows 7 Pro
-      All 10 users share the current Public Folder

I’ve already setup all 10 user’s office365 Exchange accounts (onmicrosoft.com) waiting to schedule that actual migration. Since there are only 10 users and the mailboxes aren’t that large, I will be backing them up as .PST files and import into Office 365 Exchange mailboxes

My only hurdle is 36GB Public Folder
-      “What is the best way to setup a Public folder on Office 365?
-      I thought about creating a Shared Archive Folder and placing this PST file on a new “Windows Server 2016” that I will be bringing live to replace the SBS2008 server. At this time, I’m not sure if I actually point all 10 workstation to this PST file via Outlook 2013. I support many Exchange servers that I have migrated to Office 365, however no one else had a Public Folder
-      The other option would be to create a separate Office 365 email account, import all Public folder data and share it out

Any recommendations would be greatly appreciated
Exchange 2013 script to get the quantity of emails sent or received?
When moving a folder from an Outlook client into an Online Archive an error is thrown, the process completes but the source folder is not deleted.

This seems to happen in cached mode only.

The issue  was raised below but with no real resolution.


I have found this for Outlook 2010.


How to configure Sharemailbox to move all deleted items to Share Mailbox delete folder not my own mailbox delete folder.

The link in this post is no longer available:

By any chance does anyone know how to restore an Exchange 2010 Public Folder item restore using Backup Exec 2010?

The original question was
      I'd like to restore some emails from a Public Folder backup using Backup Exec.

      I have the restore ready to go, but not sure on the best way to go about it.

      I cannot restore to a recovery database (You cannot restore Public Folders to a RDB).
      I cannot restore to a PST (Needs 2012 or above?).

      I'm not sure how to go about restoring to the Public Folder Database.  This involves taking it offline (and the Mailbox Database?).  Does this mean that staff need to come out of
      Outlook when I restore it?  What happens when you dismount a database?  Is it best done out of hours?

     Any advice gratefully received!

Thank you,
Hello Experts,
We are trying to integrate our free/busy calendar (Exchange 2016 - Hybrid/Office 365) with Slack and would like to find out of your experiences in extracting free/busy (calendar entries) of all users and how it was done.

Hello all,

Received the request to remove the reply to all button on all Outlook clients. Not sure if I agree with the request and may want to challenge it.  We are running Outlook 2013 and 2016. Anyone tasked with doing this that can share how they accomplished it? through GPO?

Is it worth doing? I'm not sure if that's the correct step to eliminate the problem? Thoughts everyone?
Symantec Backup Exec 15 will no longer backup Exchange Server 2010.  Get this error: Final error: 0xe000ff12 - A communications failure has occurred with an Exchange Store resource.
Final error category: Resource Errors

No changes to the network.  Just stopped working.  Have checked list writers.  No errors.  Backup Exec 15 is up to date.  Agent is up to date.  Have tried moving backup from tape to disk but same error.
Hello together,

is there a way to change the values in the drop down list for the archive mailbox archive quota settings in EAC?
We need to change those..

Thank you

I am migrating mailboxes from On-Prem server to office 365 using Office 365 IMAP migration. However, i am getting below error almost against 90% mailboxes and only few of them synced properly.

Transient error FolderHierarchyContainsMultipleRootsTransientException has occurred. The system will retry (2/600).
The Microsoft Exchange Mailbox Replication service 'HE1PR0301MB1931.eurprd03.prod.outlook.com' (15.20.1185.24 ServerCaps:01FFFFFF, ProxyCaps:3FFFC7FD6DFDBF5FFFFFCB07EFFF, MailboxCaps:, legacyCaps:01FFFFFF) is examining the request.
outlooktodayOutlook 365 - Outlook Today -  Message center not showing unread count on a public folder.


So I've got exchange 2013 and outlook 365 setup. Outlook 365 connects to 2 different exchange accounts, one internal and one external. On the internal one we have a public folder called Client Notes. When I add it to the favorites it will show the unread count next to it. When I add it to the Outlook Today area it doesn't show the unread count. The OS is windows 10 pro, clean install about 3 weeks old. It was working initially but stopped. So far I've googled it and tried all the work offline, download headers then data, outlook /safe, outlook /cleanviews, etc that I could find. This is on the owners computer so I need to fix it so shes happy.

Any ideas?

Thanks in advance
We have several office that utilize gsuite, but others prefer O365. The issues that gsuite doesn't work well with outlook. Can we  coexisting platform with gsuite and exchange server setup. So essentially others can continue to use gsuite while others that prefer outlook can use it.

My exchange 2010 won't mount. I'm not sure how to proceed to fix this. Any ideas?

Here is the error message I get:

Microsoft Exchange Error
Failed to mount database 'august2018'.

Couldn't mount the database that you specified. Specified database: august2018; Error code: An Active Manager operation failed. Error The database action failed. Error: Operation failed with message: MapiExceptionJetErrorReadVerifyFailure: Unable to mount database. (hr=0x80004005, ec=-1018)
. [Database: august2018, Server: MAIL SERVER].

An Active Manager operation failed. Error The database action failed. Error: Operation failed with message: MapiExceptionJetErrorReadVerifyFailure: Unable to mount database. (hr=0x80004005, ec=-1018)
. [Database: august2018, Server: MAIL SERVER]

An Active Manager operation failed. Error Operation failed with message: MapiExceptionJetErrorReadVerifyFailure: Unable to mount database. (hr=0x80004005, ec=-1018)
. [Server: MAIL SERVER]

MapiExceptionJetErrorReadVerifyFailure: Unable to mount database. (hr=0x80004005, ec=-1018)

Hi looking for the practical steps to reclaim mail from a deleted\purged Exchange 2013 Hybrid Office365 account

Call the shared mailbox test, it was originally a user mailbox, then converted to shared mailbox

What are the steps to reclaim it?

Would be great to get this from someone who has done it today or last week?

A mailbox was deleted in error and looking to get the mail back

What are the options available?
I am working with a coworker on migrating a client to Exchange online. One users mailbox won't complete the migration process. We're performing a cutover migration. The user had a Office 365 account for Microsoft office already. We're migrating into that tenant. The mailbox was migrated and showed it had synchronized successfully, but the mailbox does not show up under "Recipients" in the admin console. Tried resynching it again but nothing happens.
I had this question after viewing Possible to remove a room from Scheduling Assistant in Exchange 2010?.

How do i remove a meeting room that is showing on Scheduling Assistant but not showing on the Calendar? This particular meetin appears weekly as a booked meeting but i don't have any such meeting, hence it blocks the slot preventing others to book the room for a meeting at that time. I am using Outlook 2016 client.

Please assist.


Hello everyone,

I have two Exchange servers running at the moment (not in a DAG):

- EX01: Active/Production - Exchange 2016, build 15.01.669.32(cu4) - Windows Server 2012 R2 operating system
- EX02: Online/Development (not in use) - Exchange 2016, build 15.01.1466.3(cu9) - Windows Server 2016 operating system
- Currently only 1 Domain: mycompany.com/mycompany.local

I am brand new to Exchange and was tasked with upgrading all current systems to Server 2016 OS, including our current and only Exchange server EX01.
My approach was to stand up a new 2016 box, install and configure Exchange with new Databases, then migrate all Mailboxes; and so, I did. Everything went well during the install and I was able to migrate a few test mailboxes and send emails outbound with no problems. However, no Inbound messages are coming through for those test mailboxes. They are getting stuck on EX01 message queue with status “There is Currently no Route to the Mailbox Database XY1” - XY1 is a Database located in EX02 which contains the test mailbox used.
My intent is to setup proper communication between both Exchange servers, so I can slowly move active Mailboxes to EX02 without disrupting users and needing downtime.
Any ideas on how I can make this work?






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.