On 16-06-19 21:50, Peter wrote:
> On 17/06/19 2:00 AM, Stefan Bauer wrote:
>> we are running a small smtp relay service with postfix for
>> authenticated users. Unfortunately office 365 does not offer any smtp
>> authentication mechanism when sending mails via connectors to smarthosts.
>
> I can't believe I just looked up MS docs for you, but:
>
> https://docs.microsoft.com/en-us/powershell/module/exchange/mail-flow/set-sendconnector?view=exchange-ps
>
>
> Note the -SmartHostAuthMechanism and -AuthenticationCredential parameters.
The document says:
"This cmdlet is available only in on-premises Exchange."
Therefore not supported on O365.
Kind regards,
Martijn Briners