Hi,
The answer to your port question is 110.

To help with your problem can you send two email's to yourself, one when the switch is in, and one without it.

Then open both the email's and check the Internet headers, in View/Options. Check the received IP, is it the same, if not you have to talk to your ISP.

The Internet Headers should look something like below.


Return-Path:
Received: from ws01 ([xxx.xxx.xxx.xxx])
by mail.yourisp.net (8.11.6/8.11.6) with SMTP id xxxxxxxxxx
for ; Fri, 14 Feb 2003 15:11:31 +1100
From: "S Ramsey"
To:
Subject: test
Date: Fri, 14 Feb 2003 16:11:32 +1100
Message-ID:
MIME-Version: 1.0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0)
Importance: Normal
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Status:

Regards