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Questions tagged [office365]

133 questions
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new-compliancesearcaction delete more than 10 mails

By negligence or mistake from my colleague we need to delete all mails before a specific date. When we do a content search it comes to 5 million emails(many items per mailbox, way more than 10) Is there another way to delete those emails? We used a…
Klaas Idjdk
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Why did this incoming email get through Office 365 spam filters with a DKIM fail? What policy do I need to "tune"?

We use Office 365 mail, I got this spam email this morning so I checked the header to see if there was anything I could do. Here is the header with our receipt domain removed Received: from DB6PR01MB3829.eurprd01.prod.exchangelabs.com …
AngryCarrotTop
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Office 365 disregards MX record configuration after moving to Google Workspaces

We have recently moved from Office 365 to Google Workspaces. Let's say the domain name is example.com. We let Google switch MX records in the domain management of our provider but did not touch Office 365 settings. We started to receive all e-mails…
Ben Hirschberg
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Outlook / MS Exchange from Office 365 returns 550 header syntax

A client of mine has a case that a partner company is not able to deliver e-mails to them. The case is that they receives following information returned by Mailer-Daemon: This message was created automatically by mail delivery software. A message…
DonCziken
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Powershell to List Sent Items From Shared Mailbox by User

Is it possible to return a list of all items a user sent from Outlook on a given day, which includes mails they sent from a Shared Mailbox using 'Send As'? Ideally I'd like to use PowerShell. Example: User A sends 4 emails from their own User…
db20012022
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Script to add email address to Anti-Spam Policy in Office 365

I'm wondering if anyone has come up with a script to add email addresses to the blocked senders list within and Anti-Spam Policy within Office 365 (Security Admin Centre). At the minute, I have to click through a GUI. It's time-consuming and…
Luke Welden
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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 users can regularly see the new group calendar in their…
MaCae
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Active Directory Sync: Change user's UPN

How do I reconfigure Azure AD sync, used for making single-sign-on possible for Office365 from inside the domain, so that the domain name part of a user's UPN can change when synchronized? E.g. assume the local domain is ad.contosolocal.com, and the…
aphid
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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 microsoft 365. I can unblock them fine, but would like to…
Blimey
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Overwriting existing users in MS 365

I inherited the management of a MS365 (former Office 365) and local Active Directory system. The old server was toast and I created a whole new Active Directory domain on new hardware. On the new AD domain many users have the same email adresses as…
Christian
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Deleted emails automatically re-appear in original folders of an Office365 email account

I have an O365 email with problem that I cannot delete email in any folder like Inbox, Sent Item, Deleted, etc... After I delete one or more emails, those deleted emails automatically re-appear at the original place. Problem happens to delete action…
H-v-A
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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-fundamentals/exercise-create-website) is…
mythofechelon
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Outlook Desktop search contacts To/Cc/Ccn fields during typing

Our company migrate from KerioConnect to Office 365 to better manage the emails. Lots of people in the company have the same problem, can't search for contacts when creating a new email and typing in the "To" field (Click on the "To" button…
Carlo Zanocco
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Send As not Working sending from Outlook Client

Hey i set up a DL in office 365 and added members. I can send emails on behalf of the distribution group and it sends from office 365 but when i go to my outlook client i get an error that i cannot send on behalf of the user. This is the only…
user720062
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MS Exchange: How to enable SMTP to use OAUTH2.0 but with basic AUTH disabled

(I have asked this question also on stackoverflow but I now think that this might be a more useful community to ask hence I am also posting here.) I am trying to know whether it is possible to enable SMTP to use OAUTH2.0, but with basic AUTH…
user663702
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