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Questions tagged [office365]

133 questions
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openbsd pf firewall - how can I tell what is being blocked?

I am in a dire situation. Our exchange server disks have failed. I can still use the application as the os disks are unaffected, and I need to do an emergency migration to office365. We have an openbsd firewall in our office. I have managed to…
BeardyDrummer
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Moving mailbox from .onmicrosoft.com to custom domain?

Customer has a .onmicrosoft.com at the moment for their 365 account. They want to move from this domain to their custom domain. Their mailbox is with a Microsoft exchange server. If I change this in the 365 admin center, it will move their mail box…
ChineseAlan_518
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Duplicate meeting request email

A user says that after a recurring meeting they have, another invite is sent out again. *There is a recurring meeting that the user has sent out to a set of users. *After the meeting has been done, another request goes to all the users The issue is…
Optimus Alex
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Outlook email is forwarding to an email address, but I want to change it to a different email. I can't

The situation: Former executive director of company, director@company.com, has email forwarded to person1@company.com Current executive director, person2@company.com, wants this email forwarded to him. The issue: Company migrated to Office 365…
pretty theft
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Office365 Auditing - specifically viewing devices logged in to accounts

We have some clients who work with government contracts, and some of their requests has been to being able to audit accounts and seeing where they logged in from based on IP. Is there a way to do this? I am attempting the following via powershell…
Jason
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Is there a way to check the DNS registration date when scanning emails on Office 365?

We've just caught an email spoofing attack on our business, and it's not the first like this. Bad actor registers a DNS name very similar to a company we work with and then sends messages purporting to be from that company (but the domain name is…
Quango
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I am unable to edit user information on 365 AAD in a Hybrid Environment

Let me start off with, I know that in a Hybrid environment AD edits need to be done on-prem. However, I have a special case that I can't for the life of me figure out. I have a user that somehow managed to get their personal cellphone information on…
Christopher J. Joubert
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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 achieve that Perhaps powershell command ? Ideally, I…
ppau2004
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Office 365 - Forward email to external domain without a mailbox

We have office 365. We want to forward email addresses from our domain to people outside our domain. i.e. support@mydomain.com -> support@externalcompany.com One way I think I can do this is: Create a Mail Contact with the external address Create a…
Dave
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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 purpose is to white-label the fax service as the…
Dercni
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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 sent to that user stopped being delivered as if…
John Deer
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Sendmail - relay to Office 365 [Smart host with non default port]

I need to relay email in sendmail as follows Host example.mail.protection.outlook.com Port 2525 No authentication No SSL I know I need to set the following in the sendmail.mc file: define(`SMART_HOST', `example.mail.protection.outlook.com')dnl If…
supmethods
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The from Postfix logs differ from the from message trace in Office 365

The from address in Postfix logs differs from the from address in Message trace. Postfix logs shows sender as pick@disorderly-order.com and Office 365 message trace shows sender as rlee@disorderly-order.com. I am sending emails to myself. Sep 12…
supmethods
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Mails from my domain to gmail always in spam

I have a problem, all mails from my domain (lcs-proprete.fr) to GMAIL users only go to their spam folder. SPF is ok, DKIM is okay and DMARC is configured as p=none I disable dkim to be sure that the problem does not come from that but don't change…
Sylvain Arumugam
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Office 365 and powershell: is there a way to get the list of devices where the user has signed in

Since we're already in 2022, I'm wondering if there's a Powershell solution for getting a list of devices where the user has installed/activated office 365.The only references I've found seem to indicate that the operation can't be done through…
Luis Abreu
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