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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.

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.

Office 365 comprises of several Microsoft products for business productivity that are accessed through a subscription model. The offering currently includes Microsoft Exchange, Microsoft Lync, Microsoft SharePoint and Microsoft Office. Other related products include Microsoft Dynamics CRM Online and Microsoft Project Online.

For more details on Office 365 please see

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Might "Require TLS Encryption" in Exchange mail-flow rules cause compatibility issues for e-mail?

Picture of how I'm forcing TLS. This is essentially forced TLS. Should "Require TLS Encryption" be required for microsoft exchange mailflow rules? I'm worried about compatibility issues, e-mails not being sent or received if I force TLS encryption…
BornPerson
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Can I send a mail through Exchange Online with a different reply name and reply address than what I am authenticating with?

Just switched to Exchange Online, and ran into an issue. We have an application that lets an employee email a customer. With our previous mail provider, we would authenticate to the SMTP server using a generic mail account we used for various…
SomeGuy
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How to completely re-create user mailbox in exchange online?

I am facing a problem when a migration process from GSuite led to an unconsistent user's mailbox - migration process stopped several times and finally hit mailbox size limit (100Gb) which is much more than expected (~65Gb). So the mailbox should be…
Cyrill U
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Exchange Online - Emails undelivered due to full mailbox

By accident we had downgraded a user that had >80GB of email down to Microsoft 365 standard with a limit of 50GB. No emails could be sent or recieved for the user, until now when we upgraded the license to Exchange 2. However, the issue is that the…
Agneum
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Office 365 Mailbox cannot receive any Email after Migrating from On-Premise Exchange

In my Azure trial environment, I have successfully run HCW (Hybrid Config Wizard) and migrated a mailbox from On-Premise Exchange 2016 to Office 365. I was able to use Outlook 365 to log onto the just migrated O365 mailbox and send emails…
Blue Tongue
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can't send email to masking domain in Office 365

i have some issue here. first i have office 365 and domain xxx.com . im already masking office 365 xx.onmicrosoft.com with my domain xxx.com. here are my MX Record : https://prnt.sc/ti1kqr i can't send email to user@xxx.com from other email…
Aliga
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Granting full global domain admin rights to license reseller?

We are buying Microsoft 365 licenses and the reseller is requesting full global domain admin rights in order to administer the licenses. I'm thinking, "no way in Hello Kitty", but maybe I'm being unrealistic. Is this a normal request? Is there a…
schroeder
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Replacing GoDaddy Office 365 accounts with Exchange mailboxes

I'm currently working for a company that had an inefficient setup for their "department" mailboxes (i.e. mailboxes like info@company.com, queries@company.com, etc). I quickly realised that I can save the company a lot of money by simply using our…
Olivia Weston
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Apply Disclaimer/Warning for Messages sent to Old Domain

We're on Office 365/Exchange Online. We just completed a domain move from domain-old.edu to domain-new.edu. The .EDU TLD exclusive registrar (EDUCAUSE) is pretty strict about how long you can have two .edu domains - and we have another 5 months from…
SteadH
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AD => Azure sync for MS Teams access. License required?

We use on-premise Exchange for compliance reasons. We have users that want to use MS teams, though, and because I set up an o365 account as a test years ago, Microsoft's o365 account focus makes it difficult. Anytime someone uses their work email…
Daemach
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Office 365 login with only onmicrosoft domain?

I'm at a company right now, where I was given two email addresses. someDude@mycompany.com someDude@n45564jck.onmicrosoft.com I can receive email at someDude@mycompany.com using the outlook client, but I can't login to Office 365 with that. I can…
Jamie Marshall
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Azure AD Conditional Access Policies

We're deploying Office365 to our site and there are some security concerns that would like to be addressed. For example, we would like to lock down onedrive so that most users cannot use it, whereas a few users might be given the permission to use…
boog
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How do I pause email delivery to specific people in an Exchange Distribution List?

[Using Exchange Admin Center online; subsite of Microsoft 365 Admin Center] I would like to temporarily suspend delivery of email to specific people on a Distribution List. This is a DL that contains people both inside and outside of the…
Conrad
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How to Convert Security Group to o365 Group?

This is the reverse of How to Convert o365 Group to Security Group? This is a security group NOT a distribution list in which case I would've done Upgrade distribution lists to Microsoft 365 Groups in Outlook Or perhaps I just convert "the security…
Archimedes Trajano
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Securing a new office 365 deployment

I'd like to know if somebody here might be able to point me in the right direction. Rolling out a new O365 deployment and we would like to secure it. What I mean is that unless the user is logged into our internal network, they won't be able to…
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