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Questions tagged [exchange-hybrid]

An Microsoft Exchange hybrid deployment offers organizations the ability to extend the feature-rich experience and administrative control they have with their existing on-premises Microsoft Exchange organization to the cloud.

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Exchange Online Hybrid Public Mail Folder not found

We are currently running Exchange 2016 on premises with modern public folders. We are migrating to Exchange Online using a full hybrid configuration since the migration will take a few weeks. I am ...
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1answer
33 views

Some Office 365 users unable to receive emails with attachments. Both internal and external sources

We have recently migrated our Mail service from an On-premise Exchange 2010 server to an Office 365 subscription. It's currently a hybrid solution but we plan on decommissioning the 2010 server in the ...
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1answer
75 views

Exchange Hybrid SMTP High Availability

I have been asked to setup exchange hybrid but I must have 2 Exchange Hybrid servers handling mail flow and mailbox migrations. Is it possible to deploy 2 Hybrid servers that are load balanced and ...
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Public Folders company setup are not showing for migrated users in E2010/O365 hybrid environment

We have a hybrid environment setup between Exchange 2010 and O365 for both mailboxes and Public Folders. Since putting Public Folders in hyrbid mode (with Public Folders beta turned on in Azure AD ...
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1answer
32 views

Figure out which Public Folder AD attribute is being shared with another object

We have a hyrbid environment setup between Exchange 2010 and O365 for both mailboxes and Public Folders. Since putting Public Folders in hyrbid mode (through use of https://docs.microsoft.com/en-us/...
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2answers
255 views

AltRecipient AD attribute on mail enabled Public Folder cannot be synchronized in hybrid environment with O365

We have a hyrbid environment setup between Exchange 2010 and O365 for both mailboxes and Public Folders. Since putting Public Folders in hyrbid mode (through use of https://docs.microsoft.com/en-us/...
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1answer
64 views

Run Sync-MailPublicFolders with backticks in Powershell command line

I'm trying to run: ``` Sync-MailPublicFolders.ps1 -Credential (Get-Credential) -CsvSummaryFile "sync_summary.csv" ``` from https://docs.microsoft.com/en-us/exchange/collaboration-exo/public-...
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67 views

Separate namespace for Exchange hybrid servers

I read somewhere that you could do the following hybrid deployment. 1) Two dedicated Exchange 2016 "hybrid servers" that are F5 load balanced 2) Create a new namespace called hybrid.contoso.com. (...
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Exchange 2010 to O365 Hybrid - Keep Public Folders changable

The company I am performing an Exchange 2010 to Office 365 migration for has public folders. We planned to perform the migration while the two systems are in hybrid mode, over the course of several ...
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1answer
128 views

Strange: Users can't delete items from public folders in Outlook 2016 when the client has been logged in for about 30 minutes

We are running Exchange Online and Exchange 2013 in hybrid mode. Our public folders are hosted online. After a fresh boot/reboot, our users can delete items (permissions vary from Owner to ...
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1answer
42 views

How to disable EOP for the whole organization in our exchange hybrid environment?

set-MailboxJunkEmailConfiguration -enabled $false only disable the EOP for mailboxes. it cannot ensure new mailbox's EOP is also disable. So what is the solution? Thanks.
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2answers
651 views

What happens when you re-run the Office365 Hybrid Configuration Wizard in an environment that is already setup?

Existing Infrastructure was an Exchange 2010 + Office365 Hybrid Configuration with all mailboxes hosted in Office365 which was configured months back. If we run the Hybrid Configuration Wizard again ...
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2answers
188 views

Which server to choose in Hybrid Configuration Wizard when adding new Exchange2016 server into existing Hybrid Environment with Exchange 2010?

Current environment has an on premises Exchange 2010 server configured in Hybrid Mode with Office365 with all mailboxes hosted within Office365. We just installed an Exchange 2016 server into the ...
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2answers
85 views

If a Contact is Created in AD, Will that Cause the Creation of a Contact in Exchange?

If a contact is created in the AD, will it automatically be created in Exchange as well? Windows Server 2008 R2 environment On-premise Exchange 2010 hybrid with O365 Exchange is on secondary DC AD ...
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2answers
555 views

“Relay Access Denied” error when trying to use Office 365 as mail relay

I redirect outgoing emails in my organization to my postfix MTA. from there, i'm redirecting the mails to office 365 for relaying to the original recipients. For external recipients, I get the ...
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175 views

OU Name with 'slash' in title “suddenly(?)” rejected by Exchange 2013/0365 Hybrid

We recently migrated from Exchange 2007 to 0365 Hybrid with a 2013 server on-prem. I'm reasonably sure I've made changes to users in the 'Web/IT' OU since the migration and not run into this error, ...
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1answer
113 views

How to manage individual mailbox of the batch migration?

I tried to migrate 4 mailboxes in a batch migration with 'manually complete' is on. When the synchronization is done, I noticed 1 of them is failed, I know how to fix the failed box. But the question ...
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2answers
292 views

In a hybrid exchange environment, how to send email from a mailbox in exchange on-prem to another mail box in exchange online?

We deploy hybrid exchange using the HCW, AADC has been deployed as well. Mailbox A is created on exchange online. Mailbox B is created on exchange on-prem. Now I can send an email from A to B. But I ...
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633 views

Is ADFS a must-have, when you deploy hybrid exchange server?

With AADC implemented in our AD and Office 365, we want to deploy a hybrid Exchange next, is ADFS a must? Thanks!
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0answers
270 views

Error message on exchange server with hybrid setup to Office365

Hybrid setup between Exchange 2016 and Office 365, 50% of the of the users are migrated to Office 365 and currently no problems reported. A few months later (today) I discovered this error message in ...
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1answer
778 views

Exchange hybrid mail flow [closed]

I have successfully installed and configured exchange 2016 for a hybrid setup in my organization mail flow is up and running for all scenarios except from on-premises to o365. Every other flow works ...
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2answers
11k views

how to backup/export office 365 email to pst in exchange hybrid environment?

We have a exchange hybrid environment. (some users are in onpremises exchange and some users are office 365. ) When we want to export emails from onpremis we use , below command to export mail box ...
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1answer
307 views

How to setup out of office message for hibrid office environment using powershell?

Im searching a way to set "Out of office" message for a user who is in office 365/exchange hybrid environment via powershell. We have a exchange hybrid environment. (some users are in onpremis ...
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1answer
78 views

Exchange hybrid mode with mixed mailbox stores

I need to understand Exchange online in hybrid environment a bit better, so the question I have is if for example I have a hybrid environment with some mailboxes online and some on premise. If on ...
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1answer
53 views

Exchange hybrid mode mailbox stores

Could you please explain how and where are emails stored in Exchange online hybrid configuration after you move a mailbox from on premises server to online? I have a test environment and after I moved ...
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1answer
325 views

Certificate warning - Outlook connecting to local Exchange 2016 FQDN while autodiscover points to Exchange Online

The following is the environment: One Exchange 2013 and one 2016 server. The 2016 server is in hybrid mode. None of the the client access URLs point to the 2016 server FQDN. Autodiscover.domain.com (...
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1answer
47 views

How can I perform an hybrid multibox search on Exchange from Powershell?

I have to adapt a script that do "OnPromises" searches a hybrid context. I used the New-MailboxSearch cmdlet to implement this script. The script searches all the indicated mailboxes and copies the ...
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1answer
575 views

Exchange multi domains hybrid migration

I have an AD forest with 1 parent domain and 3 subdomains(A.lan, 1.A.lan, 2.A.lan, 3.A.lan). Azure AD Sync is configured and all accounts are synchronized. All domains have differents supplementary ...
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3answers
2k views

SPF configuration on exchange hybrid

I am a newbie at Exchange hybrid configuration. I am struggling when I try to find an answer for the situation below. We have an Exchange Hybrid system and use Messagelab as the smart host for spam ...
2
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1answer
532 views

Possible to have a cloud primary mailbox with an on-prem archive mailbox?

I have a customer that wants to migrate their users primary mailboxes from Exchange 2016 to Office 365-Exchange Online but leave their archive mailboxes on-prem. I haven't been able to decipher what ...
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1answer
2k views

Edge Transport Server missing from Hybrid Configuration Wizard

After initially running the Hybrid Configuration Wizard (but not migrating any mailboxes) we've since added an Edge Transport Server to our Exchange 2010 SP3 RU13 environment. The intention being to ...
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1answer
238 views

Exchange 2010 - Hybrid Office 365, need to update admin identity password

We have two on-premise Exchange 2010 servers, and one Exchange Online (O365 for Business). I've changed the password for our O365 Global Admin account (which is also used to connect the hybrid set-up)...
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2answers
561 views

Can I add existing AD groups to Exchange

We are using an Office365 Hyrbid deployment with Exchange 2016 on premise. The Hybrid setup was deployed after our users and groups were created and synced from AD, so they do not currently appear in ...
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1answer
5k views

451 5.7.3 STARTTLS is required to send mail Exchange 2013 Hybrid

Certificate from GoDaddy is in place, I have removed esmtp inspection from our Cisco ASA, and hybrid mail is flowing from Office 365 to our on prem Exchange 2013 server. When trying to send mail to a ...
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1answer
978 views

Adding Exchange 2013 to Existing 2010 Hybrid deployment Issues

We have a hybrid Exchange 2010 / Office 365 deployment and we are hoping to phase out the 2010 Server and replace it with Exchange 2013 CU11. I have followed the prerequisite details found here (...
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1answer
310 views

Is this a supported Exchange Hybrid scenario?

I have been battling with Office365 support on this case for a little while, as what they have been telling me is/isn't possible, contradicts the documentation they have directed me to. Some info: ...
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2answers
2k views

Exchange Hybrid send all mails via Exchange Online

We are running Exchange 2013 in a Hybrid Enviroment with Office 365 and we want to send all mails via Exchange Online. If we use the Outbound to Office 365 connector for all addresses (adding * at ...
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2answers
2k views

Exchange Hybrid no longer needed [closed]

I've wrote a few post recently regarding my troubles with Hybrid Exchange and a SPLA licence :@ Here's our current situation: We have an Exchange 2010 SP3 server that is set up as a hybrid with ...
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2answers
135 views

2010 Hybrid Exchange Decommission Free License

We currently have a single Exchange 2010 SP3 CU10 server in a hybrid mode with office 365, I understand that it is best / necessary to retain an exchange server on premise to edit attributes of users ...
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0answers
156 views

MessageCopyForSentAsEnabled bypassed with Organisational Form

Having some issues with Organizational Forms and Sent Items for Shared Mailboxes. I have several shared mailboxes with users having Send As permissions so they can send emails from Outlook 2010 (...
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1answer
9k views

Exchange 2010 SP3: 4.3.1 Insufficient system resources

We have Office 365 with a hybrid deployment. Our on-premise server is relaying email directly out to the web (not via EOP). domain-a.com is an accepted domain on our on-premise server; domain-b.com is ...