Questions tagged [microsoft-office-365]

Office 365 is Microsoft's subscription based cloud solution for business productivity. All server side components are hosted at Microsoft managed datacentres. Customers that subscribe to O365 have access to the latest business productivity software and can choose to be "entirely cloud based" or have a hybrid configuration where some on-premise servers are retained.

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Moved AD Connect to a new server and now end-users are getting errors when replying to internal emails in Outlook

I moved my Microsoft AD Connect install from one server to another today. I installed AD Connect on the new server in staging mode, turned on staging mode on the old server, turned it off on the new ...
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93 views

Combating a persistent spam list

We use Office 365 as our primary mail provider. We have an internal mail server that we use for relaying things like reports from our SSRS, scan to inbox for old scanners, etc. It is an IIS SMTP on ...
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120 views

How to prevent users from bypassing certificate warnings in Outlook

I had a case where a roaming user was connected to a public WiFi and got a certificate warning. The user saw the error and called me before connecting. Turns out the WiFi was doing SSL inspection. ...
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20 views

Save Outlook credentials in Active Directory

I have an AD with roaming user profiles. Credentials, for example for Office365, don't seem to be stored in the roaming profile, however. When the user switches to a new computer for the first time, ...
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49 views

Users getting locked out on local Domain Controller after switching default Exchange mail address to different domain

Originally, all of our users were on a single domain (ie. domain1.com) . After merging with a 2nd company, it was decided that we would use the 2nd domain (ie. domain2.com) as the primary company ...
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115 views

List attachment count per user in Exchange online (O365)

Is there any way to list attachment usage in outgoing emails of all users? I would like to run a campaign at our company to make users aware of better options than using an attachment, and having the ...
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281 views

Exchange online security groups without email

We're trying to create user groups in Exchange Online in order to group users when applying permissions to specific folder on shared mailboxes. We don't want to mail-enable those groups, but I don't ...
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305 views

Outlook + Office365 & VLAN issues

I am having major issues with Outlook and Office365. Mail is sitting in my outbox and not sending. This only started to happen after I had implemented a VLAN infrastructure at my office. I have setup ...
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1k views

Configure Exim to relay emails using Office 365

I have configured exim using this article: EXIM: Relay to Office 365 I'm getting this error: Received TLS cert status response, itself unverifiable fixed_login authenticator failed H=outlook-...
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16 views

Azure AADconnect attribute filtering using custom attribute created using Schema extension

We have a string valued attribute which is attached to user class. This attribute is created using schema extension. When i use this custom attribute to implement a inbound AADconnect attribute ...
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233 views

Re-install Azure AD Connect fails

Previously installed AAD Connect and synced from local AD domain to Azure AD (Office 365). Had catastrophic on-premise failure and rebuilt domain from scratch. Now trying to re-install AAD Connect and ...
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34 views

Multiple Azure AD Domains and Office 365

I have two active directory domains (C1.com and C2.com) in separate cities that are not in the same forest. C1.com and C2.com are synced to separate Azure subscriptions using Azure AD Connect. I use ...
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24 views

Exchange Online - how to manage no-longer synchronised account?

So we've got a setup of on-prem AD and EX Online. They are synchronised by aad connect and we've expanded the schema in AD, so we have the attribute to hide users from GAL. Now, we've parted with a ...
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11 views

Combine / Allow access between 2 Azure / Office 365 Domains / Tenants

Apologies if this is not the correct place to ask this question. After a recent acquisition, I am trying to understand if it is possible to provide a trust between 2 Office 365/Azure AD domains, both ...
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29 views

Removing Microsoft Safelinks Trackers in Postfix

I'm receiving mail forwarded from MS/Office365 mail. Microsoft, bless their inquisitive soul (and I'm using bless in the broadest meaning possible), think it's a splendid idea to track all clicks on ...
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24 views

Office365 removes mail headers before send

We're sending mails using c# Mail library, we need to send specific headers to track them through external providers. We've tried some months ago and it worked, but now trying again before deploying ...
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257 views

IMAP to Office 365 migration error

I am migrating mailboxes from an on-premise IMAP server to Office 365. Most of the accounts are migrating fine, but I'm hitting the following error on a handful of accounts. Error: ...
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126 views

Whole company / group calendar invites in O365

What is the best way in Office 365/Exchange Online to create a recurring calendar invite for an entire company, or a particular group, that automatically appears in the calendars of everyone as they ...
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16 views

Office365 get list of emails to which messages are sent and list of email addressses which received messages

I'm new to office 365. How to get list to include the email addresses of anyone who has emailed anyone in the company and anyone who they have emailed-since office365 account is active With get-...
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1k views

Local username Windows 10 Azure AD Microsoft 365

Is it possible to change the local username (C:\Users\xxx) on a AAD joined Windows 10 computer? Long version: Setup & Info: Windows 10 Business, Azure AD joined computer. Cloud only with "...
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88 views

Office 365 Data Retention?

Hoping someone could help clear this up -- basically we are looking to configure data retention policies in Office 365. Reading through some of the articles on how data retention policies work with ...
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501 views

SMTP Relay suddenly stopped working

Our SMTP relay has been stopped, we are using office 365 email account for this purpose. I have searched a lot on the net but unable to find the solution. Our environment is based on below Server (...
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1k views

Exchange Online Hybrid - Autodiscover works for Outlook 2016 clients, but fails for Outlook 2013

We have a hybrid Exchange environment with Exchange 2010 and a small number of mailboxes migrated to Exchange Online. We are using ADFS for authentication. However, for mailboxes that have been ...
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368 views

Office 365 migration from G Suite, Users receiving bounce backs?

We have recently moved to a company from G Suite to Office 365. The migration seemed to go ok. However, all users are receiving tons of bounce back internally and externally. We first believed it was ...
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295 views

No Modern Authentication prompt in Office 2013

I have enabled Modern Authentication on my tenant and it works for Outlook 2016 clients. I had to apply the following to avoid further basic prompts: https://support.microsoft.com/en-us/help/3126599/...
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38 views

How to preinstall addin on Office Online server?

Is there any way to preinstall an addin onto an on-premise Office Online server such that when a user starts Word online, the addin will already be there? I've read the documentation on centralized ...
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195 views

office 365 cannot empty deleted items

I am unable to delete messages from deleted items on O365. Once I select delete all, they appear gone, but only to come back seconds later. Does anyone have experience with this, as microsoft ...
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47 views

How can we use HubSpot or HighriseCRM with Office 365 and German MS Cloud?

We use Office 365 with the additional option of being hosted in the german MS cloud. Now we would like to connect our CRM tools (HubSpot and HighriseHQ) with Office 365. Unfortunately those tools ...
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614 views

Use PowerShell to obtain Office 365 DNS records

For the past while, I’ve been learning PowerShell to administrate our Office 365 tenancy instead of using the web interface. After adding a new domain and confirming ownership of the domain name (all ...
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116 views

Restrict all Office 365 access externally except for Yammer and Dynamics

I can currently restrict access to OneDrive/SharePoint (and also Yammer) using Device Access policies, only allowing access to these services when users are inside the corporate network. However, ...
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262 views

Exchange Hybrid Deployment - EWS Access for 3rd party UC application

We have a UC application which has an Exchange integration feature. The integration uses EWS to connect to mailboxes and synchronise calendar events and other info. The system has a single field for ...
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29 views

Deprivatized email repository

I need to create a repository of some historical emails for employee training purpose. Sensitive information in those emails should be removed, such as customers' email address and their names. Is ...
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247 views

Active Directory UPN Suffix / Logon Name

I have a question regarding UPN Suffixes / User Logon Names in Active Directory. Quick Rundown: We have a Domain and Exchange Server on-premise, the domain is called CONTOSO.local One user has 3 ...
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127 views

Email not appearing in outlook client, but showing on iPhone

My environment consists of the following: Users are on Office 2016 installed from Office365 Email is handled by Office365 Cloud installation One user is experiencing an issue whereby they will ...
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242 views

Migration from Office 365 to postfix

I'm facing a challenge: smoothly migrate users of a domain from 365 office Exchange to a multi-domain fully functional postfix server. The idea is that users can freely choose to either use their ...
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19 views

Reconfiguring MFA for SAML account

We use Office 365 SAML for authentication with NewRelic. I recently factory reset my phone and now don't have my Microsoft Authenticator account. I am trying to figure out how to set this up again ...
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957 views

Use Google apps (G-suite) and Office 365 in one doman

I have a domain midominio.com and I use google apps to manage and use email. Now I have to move to Microsoft Office 365. The question is if can have the google mail and the microsoft mail with domain ...
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207 views

How can I route messages from Intermedia Exchange to Office 365 if they share the same domain?

I would like to route messages from Intermedia Exchange to Office 365 where both environments share the same domain. (example.com) To complicate this situation, the domain example.com is also hosted ...
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649 views

Exchange 2013 + Outlook 2013 - Password prompt for On-Premise users when opening O365 Calendars

We have a hybrid setup with Exchange 2013 and O365, dirsync and ADFS are configured and working correctly, end-users have Outlook 2013 running on 2008R2 RD Servers. Mail-flow and migrations are ...
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1k views

Windows Server 2012 R2 - SMTP Relay - Connection Dropped by Remote Host

We setup a relay server for Office 365 on a Windows Server 2012 R2 instance roughly a year ago. Everything has been fine until the past week when the relay appears to lock up and e-mails continue to ...
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69 views

Cannot enable Azure AD Domain Services

I try to enable "Domain Services" in azure. The azure ad comes from an office 365 tenant. The problem is I don't even see the option to enable domain services (I looked under Active Directory -> ...
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420 views

Need help setting up user and computer management for small business

I work for a small business, which currently has 4 PCs, and everyone else uses laptops (about 10 other people). Some of us use Mac, but the vast majority of us are on Windows 8. We are currently ...
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2k views

Hybrid Exchange Online setup with on premise public folders, certificate issues?

We have a Hybrid Exchange setup with Exchange Online (v15 tenant) and Exchange 2010 on premise. The hybrid configuration for the most part is working, what I am having an issue with is getting public ...
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2k views

Office 365: 'client smtp submission' suddenly starts failing. How to diagnose client auth error?

Since a few days, my application fails sending SMTP email. The app is in fact a scheduled task (which is running on my local machine, written in C#, using SmtpClient) and occasionally needs to send ...
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42 views

seach-mailbox group mailbox

How do you search a group mailbox. Search-Mailbox -Identity "groupbox@mail.com" -SearchQuery 'Subject:"Hello"' -TargetMailbox me@mail.com -TargetFolder "Inbox" When I try to search the group mailbox ...
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35 views

how to access “recover item folder” of archive mailbox?

May I know from the user perspective, is it possible for them to access "recover item folder" of their archive mailbox? I enable the archive mailbox for users, there is a "Recoverable Items 14 days ...
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13 views

Can I setup SSO for Office365 / 2016 over RDS without Federation

We have an Azure cloud with an Active Directory server, an RDS server with installed apps (including Office 2016) and an RDWeb server for publishing the application icons. We have to login to ...
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35 views

Onedrive gpo not apply to PC

We are tying to setup a one drive for business. We are trying move known as folder to one drive and Home drive but having some issue. I created a policy to do this but its not working. When I click ...
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102 views

Can HSTS includeSubDomains break Office 365 autodiscoveries?

Office 365 requires CNAME records for several autodiscoveries etc., including: autodiscover CNAME autodiscover.outlook.com. sip CNAME sipdir.online.lync.com. ...
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118 views

Suppress the Office 365 “Sign in to set up office” dialog?

I'm putting together a new image, and looking for a way to suppress showing the "Sign in to set up Office" licensing nag screen on Office 365 Build 1808 and newer. This dialog appears when an Office ...