Configure Entourage to use port 587 for sending email

An increasing number of cable and DSL providers (Comcast, Cox, Roadrunner, etc.) are blocking the SMTP port (port 25) except to their own mail servers. This is being done to help reduce the amount of spam sent from infected customer PCs.

Symptoms are: you get an error sending mail, saying "could not connect to mail.his.com" (or mail.).

In order to send email through your HIS mail server from your cable/DSL account you will need to use port 587.

1. Open Entourage, select the Tools menu and from the bottom of the drop-down list select Accounts.
2. On the Accounts window under the Mail tab, click on your HIS email account to highlight and then select Edit.
3. The Edit Accounts window should appear opened to the Account Settings tab.At the bottom of the window under Sending mail, ensure your SMTP server is set to: mail@his.com or mail..
4. From here, select Click here for advanced sending options. In the Override default SMTP port: field enter 587, then select OK.

After you have completed the above steps for Entourage (Mac Mail), you will be configured to use port 587 to send email.