Hello,

We have an exchange 2013 and we want to allow a web application that is outside the organisation to send emails through our sever to external domain.

Do we have to create an smtp receive or sending connector? How this on has to be configured ?

Thank you in advance.

m

Hello Mehdi,

you have to create external SMTP relay (receive connector) 

http://exchangeserverpro.com/exchange-2013-configure-smtp-relay-connector/

Hello Mohamed,

Thx for the answer, just one more thing :

When a create the connector, should i use Hub transport or Frontend transport ?

Which type also should i choose, there is many options..

Thx

m

Hello Mehdi,

For both internal and external SMTP relay scenarios the Frontend Transport service will be handling the connections.

so you will use SMTP receive connector as Frontend transport service.

When the application connect to our exchange server, it allows only to relay to email adresse that are from our exchange server, if it's an external adresse, it fails.

So how can we allow a relay to external email adresses ?

Thx

m

Hello Mehdi,

be sure that you enable exchange servers permission and externally secured authentication after you create the receive connector.

Try this...

Get-ReceiveConnector "Internet" | Add-ADPermission -User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights "ms-Exch-SMTP-Accept-Any-Recipient"

I've run into this before trying to get alerts to get to my domain from client devices.