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Prevent email to Team/Office 365

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TJ Parass
Occasional Contributor

We want to reduce emails to distribution lists and move to Microsoft Teams.

 

So lets say we create a Microsoft Team called "Staff".  Behind the scenes you will see that an Office 365 Group has been created with Subscribe Members = "off" and and email address something like staff@company.com.

 

Everyone joins the team and starts chatting.  However someone decides to email staff@company.com.  This is allowed and I haven't seen a way to prevent this.  So when that email goes out it doesn't end up in Teams and doesn't end up in users inboxes because by default they weren't set to subscribe to those emails.  Frankly we don't want them to subscribe because we want all of this just to be posted to a Team Channel.

 

Btw the email mentioned above does end up in the Group box found in Outlook.

 

So can we create a Microsoft Team and turn off the email address?  I can't seem to find a way.

 

 

9 Replies
Simple answer: No, you can't. When a Team is created a Groups is created behind the scenes...Teams are based on Groups

To follow up with first reply i would hide the mail adress from gal that at least would minimize the traffic

 

And Maybe a soft policy linked in the team channel that please dont mail to the group or something along those lines:)

To hide the smtp adress use 

Set-UnifiedGroup -Identity "smtp adress" -HiddenFromAddressListsEnabled $true

 

Source: https://technet.microsoft.com/en-us/library/mt238274(v=exchg.160).aspx

 

 

@Juan, totally understand but my point is that if a Team is created and as a result it now has an email address then everyone should know that if you email that address the email will never show up in Teams.

Conny,

 

According to the link you posted, there is a couple other variables you can set for Unified Groups called "AcceptMessagesOnlyFromSendersOrMembers" and "RejectMessagesFromSendersOrMembers".

 

I wonder if anyone has tested these out to see if they can be used to restrict who can send email to a unified group's email address.

 

That would come in handy.

 

Michael

Quick test, this worked like a charm

Hi, 

 

I also am interested in this issue. In regards to the allow send list, I have tried this and although it pops up as a mailtip stating the user is not allowed to send mail to that address, if the user then hits send the mail will still appear as if it has sent correctly, but upon tracing the message you can see that delivery failed without notifying the user. any thoughts? 

 

Our company just learned about this Groups email quirk the hard way. A new Team was created, and users were having a conversations in Teams.  Then, one owner sent an urgent request to the Group email address - and no one got the email. Of course, they all got the email as expected - in their Groups in Outlook - but it feels like a major gap that emails sent to the Team/Group email are not posted into the Team conversation. All of our users are very familiar with DLs, and we are moving to Teams over the next few months. Any good process ideas to handle the Group email - should we just hide them and set reject messages? We do really want to move our users away from email!

The default behaviour changed some months ago, when you create a Team from within Teams the email address is hidden from the address book by default.

Thanks @Steven Collier - that would explain why only some of our Teams show up as an email address :) 

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