Modify Send Connector on Office 365

I need to modify one of the send connector we have setup in our Office 365 implimentation, to require TLS. I have tried using the below powershell commands, but these all error with:
"Set-SendConnector : The operation couldn't be performed because object 'PartnerCo Outbound' couldn't be found on 'DomainController1.ourdomain.local"

#connect to Exchange Online
$LiveCred = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic -AllowRedirection
Import-PSSession $Session –AllowClobber
add-pssnapin Microsoft.Exchange.Management.PowerShell.E2010

#modify send connector
Set-sendconnector –identity “PartnerCo Outbound” –requiretls $true
#Using Online Domain as a prefix:
Set-sendconnector –identity “CloudDomain\PartnerCo Outbound” –requiretls $true
#Using GUI:
Set-sendconnector –identity 74930198-55f9-4e5b-ba36-7fb3cf473f1e –requiretls $true

How can I connect to Office 365 and modify the send connector?
bjblackmoreAsked:
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Vasil Michev (MVP)Commented:
Remove the

add-pssnapin Microsoft.Exchange.Management.PowerShell.E2010

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part of your script, using this will send the cmdlets to your on-prem server
bjblackmoreAuthor Commented:
Thanks for the reply.

If I remove that line from the script, the cmdlet is not recognised.

I get an error: "The term 'Set-sendconnector' is not recognised as the name of a cmdlet, function, script file, or operable program."

set-sendconnector error
Vasil Michev (MVP)Commented:
Sorry, I dind't read the rest of the post it seems. The correct cmdlets to use with Exchange Online are the following:

Set-InboundConnector or Set-OutboundConnector

http://technet.microsoft.com/en-us/library/jj200710(v=exchg.150).aspx

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bjblackmoreAuthor Commented:
Thanks, that seems to have sorted it!
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