Questions tagged [microsoft-365]

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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
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convert local machines to MS 365/Intune managed

Currently we have a 365 account - 50 users, and 50 local machines with local logins. According to my reading, 365 can manage configs on these machines and allow to specify which 365 users can log into ...
Steve H's user avatar
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Rule to get 365 to reject email at the SMTP stage

I have setup a shared mailbox to use for sending alerts from a powershell script and it works fine. I now want to lock down the shared mailbox so that it cannot be used to send outside the org, and so ...
Dude named Ben's user avatar
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1 answer
486 views

Emails from a certain sender are being automatically deleted

I am part of an organization that uses Microsoft 365 and Outlook for our mail and we have a user who, when they receive an email from a certain account (lets call it alice@example.com), it gets ...
Gabe Chantayan's user avatar
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0 answers
25 views

O365 redirect domain on send

Is it possible to redirect emails received to another domain using wildcards? For example, we wish our client to send faxes to @fax.ourdomain.com and then redirect the fax to @faxservice.com The ...
Dercni's user avatar
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1 answer
65 views

Can I host some mail addresses in Microsoft 365 and keep the others in IMAP host?

I manage a company with 200 users, all of them having IMAP mail in a cloud based hosting (not on premise); now I want to migrate some of those users on Microsoft 365, keeping the most of them on IMAP; ...
SYS64738's user avatar
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21 views

User lost access to Excange Online and some other Microsoft 365 apps for no apparent reason

I would be happy to know any ideas why a single user in a Microsoft 365 tenant would suddenly lose access to some M365 services, like Exchange Online and Microsoft Forms. I came across this when email ...
John Deer's user avatar
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2 answers
510 views

Forwarding Meeting invites to Teams Rooms

We're currently looking into simplifying our Teams usage in the organisation. In particular, our static Teams Rooms. The biggest issue we are facing is how to manage external invites. First off, we're ...
FrostyForrester's user avatar
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1 answer
248 views

Unregister user account from devices in a Windows Domain

In a Windows Domain with Microsoft 365 when a user has used more than 20 devices they get an error they have have to unregister in order to sign into a new Windows 10 workstation. Does anyone know of ...
JJ01's user avatar
  • 451
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2 answers
866 views

Migrating a domain from a Microsoft 365 tenant with it's users to a another tenant

Company I work for has two domain names and they created two different tenant accounts for each domain. this makes it hard to collaborate. I need to migrate contoso.com from a tenant account to a the ...
Erdem Ece's user avatar
  • 111
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1 answer
52 views

MS365 + Hybrid Exchange Distribution Group Oddness?

So, one of the companies I work with encountered some chaos in their hybrid MS365 / on-prem deployment. There is a distribution list (we'll call it distlist1@example.com) which is present on both the ...
Thomas Ward -On Strike's user avatar
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3k views

Whitelist internal address on Exchange 365 for "Potentially compromised accounts"

I am receiving the following alert for an internal address: Potentially compromised account. Anomalous sending patterns were detected resulting in the user being restricted from sending mail ...
THE JOATMON's user avatar
1 vote
1 answer
814 views

Change timeout for message review in Exchange Online?

I have set up some phishing/malware mail-flow rules that will forward emails to me for review based on attachments or a list of domains. I can then choose to accept or reject the message. It seems to ...
THE JOATMON's user avatar
0 votes
1 answer
1k 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
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1 answer
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Windows 365 Enterprise Setup

I'm going to sign up for Windows 365 and have a few questions that will help me with my decisions. Currently, we do have an Azure Subscription but do not have a VNET. We also use Azure Active ...
Sam's user avatar
  • 101
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1 answer
736 views

onmicrosoft.com FQDN for Microsoft Learn Sandbox 365 tenant

With Office 365 tenant restrictions in place, access to the Microsoft Learn Sandbox's Office 365 tenant (used by courses such as https://docs.microsoft.com/en-gb/learn/modules/azure-architecture-...
mythofechelon's user avatar
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3 answers
634 views

Exchange 2013 Hybrid EAC not seeing mailboxes in a second domain

We have a hybrid setup. I have a situation where certain users are not showing up on the local on-prem Exchange 2013 server under recipients. We have two domains in our single forest. I will call our ...
Scot's user avatar
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1 answer
1k views

Azure Active Directory, Multiple Organizations and Tenants

When working with Azure Active Directory, does the product have a way to support multiple directories under a single tenant? I am trying to use this example on a company that is a parent company of 3 ...
Kevin's user avatar
  • 145
2 votes
2 answers
2k 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
0 votes
1 answer
243 views

Cannot add addon by URL - Microsoft 365 Admin Centre

Summary A customer is trying to add an integrated custom app (add-in) and receiving an error after inputting the "custom url". Replication steps Login to https://admin.microsoft.com/...
Simon's user avatar
  • 101
0 votes
2 answers
1k views

Exchange mail flow rule to use connector when no mailbox found

I think my scenario is a hybrid scenario, in that I have MX records pointing to Exchange 365, and all the internal company emails are in Exchange 365. However, we also have a couple of hundred other ...
Greg Woods's user avatar
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1 answer
1k views

Change the Exchange Online display name without changing the user display name in MS365

A client who uses Exchange Online asked me today to change the name his recipients see when he sends an email. Instead of just displaying the first and last name, the company name should also become ...
vic's user avatar
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-1 votes
1 answer
4k views

Warning: There is no outbound connector to deliver mail for this domain

I was following this guide to set up a catchall account. One of the steps instructs you to set all domains as "internal relay". When I do that, I get the following warning: There is no ...
THE JOATMON's user avatar
1 vote
1 answer
2k views

How do I setup O365 to allow IMAP? (App Passwords no found)

I have an office365 account and cannot link my email to my email client. I have MFA activated and the only client that allows me to link the mail is the same Outlook 2019 for PC or Mac. Can I link you ...
Jhoedram's user avatar
  • 153