Connection Information

This page documents general connection information for E-mail Server.

Connecting to Exchange Server with EWS

Starting in release 8.1.4, E-mail Server can connect to an Exchange Server running Exchange Web Services (EWS). By connecting to the corporate server using an HTTP connection, you gain flexibility in getting through the firewall, as HTTP ports are often already opened.

To do this, use the following options settings:

pop-client Section

Option Name	Setting
type	ews (new possible value in 8.1.4)
folder-path (new in 8.1.4)	(empty) The key must be present.
port	The port used for EWS. Common values are 80 for unsecured connections and 443 for secured connections
server	EWS url (see "Finding the EWS URI" below).
mailbox	User's adress, for example, JeffP@contoso.com

smtp Section

Option Name	Setting
server-type (new in 8.1.4)	ews
server	EWS url (see "Finding the EWS URI" below). For example, https://owa.example.com/ews/exchange.asmx

Important

The pop-connection-security and smtp-connection-security options have no effect when used with EWS. Secured or non-secured connection are used depending on the server's configuration. The connection is automatically done and negotiated using Apache's HTTP client, which handles TLS negotiation if needed.

Finding the EWS URI

Most of the time the EWS is published together with the OWA: If the OWA-URL is for example https://owa.example.com/owa, EWS is available at https://owa.example.com/ews/exchange.asmx. The EWS-URL can be tested in any browser (except Internet Explorer). The request should be forwarded to https://example.com/ews/Services.wsdl and a WSDL should be sent to the browser.

Specifying the From Header

When using the Forward object in a routing strategy, or any method that can specify a user to go in the From header, the corporate e-mail server might refuse to send the e-mail. To avoid this, you can configure the corporate server to allow sending e-mails on behalf of another user.

Here is an example for Microsoft Exchange using PowerShell:

Add -ADPermission "Bruce Wayne" -User "gotham\selinaK" -Extendedrights "Send As"

This allows selinaK to send e-mails on behalf of the user "Bruce Wayne."