Questions tagged [exchangeonline]

Exchange Online is the hosted version of Microsoft's messaging platform (e.g. Exchange Server).

Filter by
Sorted by
Tagged with
1 vote
1 answer
34 views

Exchange hybrid (mailboxes in cloud): where to add secondary email address

We are an M365 tenant in Hybrid mode, with only Exchange Online mailboxes, synching mailbox attributes through Entra Connect. We have acquired another firm (not an M365 tenant). We have taken over ...
tb1's user avatar
  • 155
0 votes
0 answers
23 views

Allow On-Prem SMTP Connections to send email to in-Cloud (O365) Distribution List

I would like to move many of my on-Prem Distribution lists to ExchanceOnline Distribution Lists/Groups. (Not Microsoft 365 Groups/Teams style Group). Just a Simple Distribution list to be able to ...
scooter133's user avatar
0 votes
2 answers
158 views

Exchange Online hybrid migration rollback

I need to recover a failed Exchange Online hybrid migration from a single Exchange 2013 server. All changes were backed out, however obvious artifacts remain that demonstrate this is not the case. ...
OneOfTheDamons's user avatar
0 votes
1 answer
352 views

shared mailbox "send as" not working for internal recipients

We created a new shared mailbox in Exchange Online and assigned users Full Access and Send As rights. When those users send to external email addresses as the shared mailbox, it works. But when they ...
longneck's user avatar
  • 23.2k
1 vote
1 answer
113 views

Exchange Online ESMTP responds differently from different clients - Windows 10 vs Windows Server 2019

When I telnet to our Exchange Online's SMTP server address (****.mail.protection.outlook.com, port 25) I get two different responses or types of connect depending on what machine I'm using. When I ...
DHoll's user avatar
  • 11
0 votes
1 answer
115 views

How to Remove Disabled AD Users from GAL in Exchange Online (M365) REST API

There are many old questions related to this targeting Exchange 2010 on premises. If you're using Exchange Online in Azure, things have changed. Now you will need the new REST API remote PowerShell ...
HackSlash's user avatar
  • 336
0 votes
0 answers
91 views

Block exchange from sending mails to internal organization

there is a very specific challenge I'd like solve and so far nothing worked. Situation: We have a rather large exchange environment with multiple domains (@domain-a.com, @@domain-b.com, @domain-c.com)....
slyonpc's user avatar
1 vote
1 answer
144 views

Office365: Strip specific email addresses in "To:" field with transport rules

I've setup a transport rule to redirect all messages from [email protected] to [email protected]. The redirection is working fine, but the support system identifies support@...
Vinícius Ferrão's user avatar
0 votes
1 answer
134 views

Deduplicate forwarded emails sent to mutiple distribution groups

I have 2 distribution groups set up listening on 2 different email addresses: [email protected] and [email protected]. I have one (Shared, if it makes a difference) mailbox set up Emails. This mailbox ...
Matthew Steeples's user avatar
0 votes
1 answer
859 views

365 email temporary delay from one source

This happened in the past and is no longer an issue. Status emails about planes are sent frequently and there was a period of time where those mails were delayed by hours. To try and include only ...
Matt's user avatar
  • 670
0 votes
1 answer
464 views

Exchange Online redirect rule doesn't reset "To" address

My configuration goal is to forward / redirect a message going to a mailbox to an external site (its an email capture setup). I was using forwarding, which is straight forward but includes the ...
Gerard ONeill's user avatar
2 votes
2 answers
392 views

Exchange Transport Rule to block combination of recipients?

Is it possible to create an ETR that blocks certain combinations of recipients? Imagine I have two customers in different domains with similar email addresses. I want to prevent sending to recipient ...
bendodge's user avatar
  • 166
0 votes
1 answer
509 views

M365/OME - Encrypt emails not using TLS 1.2

I don't want to require the use of TLS 1.2 in Exchange online/O365 as it might result in some important business email not being sent/received. So has anyone found a way to actually encrypt all in/out ...
Mathias Rønnow Nørtoft's user avatar
0 votes
0 answers
304 views

Assign specific Exchange Role to App-only authentication with Exchange Online Powershell

I need to use the following cmdlets from ExchangeOnline Powershell module with an unattended connection. Get-QuarantineMessage Preview-QuarantineMessage Release-QuarantineMessage Export-...
Brice's user avatar
  • 212
0 votes
1 answer
158 views

No longer able to forward emails from exchange online

I have a couple of developers helping me out with a project so I've given them access to my teams so we can collaborate. I am in Office 365 and exchange online. Last summer I set up forwarding on ...
Zonus's user avatar
  • 203
0 votes
1 answer
347 views

Using same credentials for Connect-MgGraph and Connect-ExchangeOnline

I'm working on a (powershell) script which creates a Service Principal using MS Graph and then wants to grant that principal permissions in MS Exchange. Both the Graph and Exchange are in the same ...
Kevin Martin's user avatar
0 votes
2 answers
209 views

How can I set an Office365 mail archive policy for all mailboxes where mails are older than 5 years and size larger than 50GB

How can I set an O365 mail archive policy for all mailboxes where mails are older than 5 years and size larger than 50GB I have looked up Office365 admin portal, however can't see any options to ...
ppau2004's user avatar
  • 163
0 votes
0 answers
288 views

How to add a confirmed O365 domain as an Exchange Online accepted domain?

A little background on our AAD/O35 tenancy: We have domainA as our primary domain. This is used for SSO, our primary email addresses, etc etc. We acquired another business. One of their domains (...
ltwally's user avatar
  • 325
0 votes
0 answers
206 views

Exchange 365 rule to block messages that contain any javascript

How can I add a rule that blocks any message with any explicit (script tag) or implicit javascript code (e.g. onclick="....")? I know Exchange online has a rule to block any executable ...
Ali Sahin's user avatar
0 votes
1 answer
489 views

hide Archive in Outlook

Is is possible to hide the Online Archive in Outlook? We have archive enabled because we have in-place hold enabled, but we don't want users to use the archive features, and we don't want the Online ...
longneck's user avatar
  • 23.2k
0 votes
1 answer
772 views

Exchange Online "Standard protection" preset vs Exchange Online Protection?

I noticed my 'tenant' had this Standard Protection preset off. Apparently this is supposed to be the 'baseline protection profile". However, everywhere I am reading that EOP is enabled by default ...
TCD002's user avatar
  • 1
1 vote
2 answers
3k views

Design a compliance content search in O365 to ONLY return a specific person and a specific domain

I am attempting to do a content search through Exchange on O365 to return mail between [email protected] and anyone at outsidedomain.com I thought that this should work in the KQL: (ParticipantDomains:...
dragonspeed's user avatar
-2 votes
1 answer
32 views

Exchange Online & Exchange Online Archiving

I thought Exchange Online Archiving was like a separate mailbox (maybe like a shared mailbox) and that I had to choose by myself the emails/items one by one, which I wanted to be saved there instead ...
iJohnnyCash's user avatar
2 votes
1 answer
1k views

Exchange Online and on-prem AD

A few years ago, we moved all of our on-prem Exchange 2010 users to Exchange Online using a full hybrid migration. When have no on-prem Exchange servers anymore. Many of the changes we make to ...
longneck's user avatar
  • 23.2k
0 votes
0 answers
177 views

Where do I look for issues with a local AD user not being able to activate O365 on any machine

Here is our really weird situation. AD on prem, using Exchange Online w/ 365. We have an unmanaged auto machine that stopped authenticating from the domain joined machine to office 365. Won't ...
Jeremiah Halstead's user avatar
0 votes
4 answers
2k views

How to grant access to the Microsoft 365 Admin Center to limited Exchange Online administrators?

Related to this: Exchange Online RBAC - How to limit the read scope of a management role?. We need to allow some administrators to manage only a subset of all mailboxes in Exchange Online; we achieved ...
Massimo's user avatar
  • 71.4k
-1 votes
1 answer
1k views

Office 365 delay internal email outside of working hours

My employer is looking to reduce email outside of workings hours from internal employees to help reduce workload and stress. I have advised this is a technical disaster and sledgehammer for a wallnut, ...
morleyc's user avatar
  • 1,150
0 votes
1 answer
736 views

Forwarding Meetings to Room Resources from External Sources

Is there a way to allow a Room Resource in Exchange Online to be booked for an external meeting by forwarding the meeting request? I found an article that suggested setting the DeleteComments property ...
Ivan Wilson's user avatar
1 vote
3 answers
3k views

Microsoft 365/Exchange Online - Outlook rule "Have server reply using message..." not working when recipient is on exchange online

I have a user that wants an automatic reply being sent back only to certain people (outside the org) with his outlook client. I have managed to configure the outlook rule "have server reply using ...
gasdug's user avatar
  • 21
0 votes
1 answer
4k views

Error sending email with Office 365

My company has Office 365. We use account for send email (SMTP/SSL) https://www.gmass.co/blog/office365-smtp/#office We get error similar like this, but using Exchange Online https://docs.microsoft....
Kiquenet's user avatar
  • 143
0 votes
1 answer
327 views

How is ExchangeOnlineManagement PowerShell module related to ExchangePowerShell module?

Please let me understand how ExchangeOnlineManagement and ExchangePowerShell modules are related each other. For example Microsoft Docs describe cmdlet Connect-ExchangeOnline as it comes from ...
huhu78's user avatar
  • 151
0 votes
2 answers
4k views

How to send an email with openssl and Microsoft Exchange Online?

With Microsoft disabling basic auth in Exchange Online, I set out to add support Modern Authentication in our application. Our app sends basic email alerts. Currently we use SMTP basic auth or open ...
JazZeus's user avatar
  • 41
0 votes
1 answer
2k views

Create a Mail-enabled security groups with Azure AD role assignment?

I would like to create a Security Group within my firm's 365 Tenant with a group email address and role assignment of "Billing administrator" - i.e. Can perform common billing related tasks ...
Josh_BI_UK's user avatar
0 votes
1 answer
2k views

Exchange Online: move some messages back from online archive

Due to a mistake on a retention policy, too many (too recent) messages of user mailboxes were moved to online archive. I know that MS offers no wayback for online archive. I investigated some options: ...
Massimo's user avatar
  • 46
-1 votes
1 answer
1k views

Can Microsoft resolve an IPv6 for Exchange Online?

Is there a way to resolve an IPv6 address for Exchange Online like : mydomain.mail.protection.outlook.com? I only got an IPv4 address for the mailserver at mydomain.mail.protection.outlook.com Thanks ...
ComputerBas's user avatar
0 votes
2 answers
170 views

Exchange Online Group Calendar entries are not replicated to all members

I created a group in Exchange Online (Microsoft 365 group type) and added a few test members. The target is to have a shared calendar. "Subscribe new members" checkmark is enabled. All test ...
MaCae's user avatar
  • 21
0 votes
1 answer
5k views

Powershell to exclude Group Members from Dynamic Distribution List O365

I am creating an All Dynamic Distribution Group in Office 365 exchange online. I am doing this with Powershell. We will call this group AllTestGroup. Here is some information about the setup. ...
David's user avatar
  • 121
0 votes
1 answer
742 views

Unable to create Import Jobs in Information governance of Microsoft 365 compliance in Exchange Online

We r using Microsoft 365. I am trying to create Import Jobs in Information governance of Microsoft 365 compliance in Exchange Online. I am getting the message "To create import jobs, you must be ...
Lakshmi Anand K's user avatar
0 votes
2 answers
2k views

Getting statistics from Exchange Online about inbound mails from external domains

I've been asked to see if we can get an idea of how many external mails we receive, and what external domains are the most "active". Basically what's wanted is a report detailing how many ...
Laage's user avatar
  • 117
2 votes
1 answer
4k views

How to solve issues with Exchange's Autodiscover (xml) and any peculiar clients like Windows Communication Apps [HxTsr.exe] with complex DNS config?

For the search engine, context elements: Exchange Online Office 365 / Microsoft 365 --> Particular Outlook --> outlook.office.com Windows' Mail & Calendar App [HxTsr.exe, "microsoft....
A71's user avatar
  • 151
0 votes
1 answer
2k views

Whitelist mailboxes from being blocked from sending emails due to the "User restricted from sending email" alert policy in microsoft365 security?

I have a couple of mailboxes that are periodically being blocked from sending emails due to the "User restricted from sending email" alert policy within the security and compliance center in ...
Blimey's user avatar
  • 1
0 votes
1 answer
6k views

Exchange Full Hybrid - Email to distribution list gives '550 5.5.3 too many recipients' error (cloud to on-premise)

We are in the process of migrating from Exchange 2016 CU19 to Exchange Online. We are running a full hybrid configuration with two on-premise servers in a DAG. So far we have only migrated a small ...
Daniel's user avatar
  • 253
1 vote
1 answer
314 views

In an Exch 2016/EXO hybrid deployment, should a telnet message test on prem be considered internal

I have inherited a hybrid deployment between Exchange 2016 on prem and Exchange online. One of the first things I had to do was turn of centralized message transport, as it was adding two unnecessary ...
James Edmonds's user avatar
1 vote
2 answers
529 views

Enabling Journaling in Exchange Online

I'm trying to migrate a small company from an ancient, on-premise Linux mail server over to Exchange Online. One of their core requirements is that they need copies of all inbound and outbound e-mail ...
jhilgeman's user avatar
  • 113
0 votes
1 answer
79 views

M365 Exchange Connector Blocklisting

I am writing an Exchange Connector that will send messages from M365 to my app server, which will then relay modified messages back to M365. I understand that without Enhanced Filtering for ...
nosajsnikta's user avatar
0 votes
1 answer
328 views

Exchange online outbound execution order

I am writing an outbound connector for exchange online but want to understand the order of execution better. This is how I think things would happen but confirmation would be appreciated: Sender ...
nosajsnikta's user avatar
0 votes
1 answer
2k views

Having Trouble with Exchange Archive Errors - 365 Hybrid

I work in a hybrid 365 environment. Someone made some changes to the archives for users' mailboxes and now I'm getting errors in 365 admin center when I look at an active user:image of error box I was ...
rkr87's user avatar
  • 1
2 votes
2 answers
3k views

Cannot find Network Message ID in Message Trace

I'm viewing a message trace from https://admin.exchange.microsoft.com/#/messagetrace If I expand "More Information" on the selected email, I see "Message id". When I go to https:/...
THE JOATMON's user avatar
2 votes
1 answer
795 views

Hybrid Exchange - 3 step deprovisioning necessary when using archive

The Microsoft documentation for the Disable-RemoteMailbox powershell cmdlet states: Note: If you are deprovisioning a cloud mailbox and its associated online archive, you must first disable the ...
Tore Olav Kristiansen's user avatar
0 votes
2 answers
288 views

How can I transfer a cloud mailbox from user A to user B

We use Exchange Online (O365) in our organization. There is a quite huge mailbox (thee digit GB) in our tenant which belogs to an AD object we shall call user A. For reasons which are hard to explain ...
TorstenS's user avatar
  • 210