If your with the following ISPs or a reseller that uses their network this applies to you:

• Telstra BigPond
• Optus
• Request
• iiNet
• AAPT
• iPrimus
• WestNet

The above ISPs are currently blocking third party SMTP servers such as ours, therefore you might find yourself unable to send outbound email using your Invision Host hosted domain. Our solution to this problem is changing the port your mail client connects to our SMTP server on. We have setup our entire network to accept email on port 25 as well as accept connections on port 26.

To change you're SMTP sending port:
Tools
Accounts
<Select your hosted POP3 account(s)>
click "Properties"
Click the "Advance" tab
Under "Server Port Numbers" change the outgoing port from port 25, to port
26

OK out of everything back into your inbox. Close your mail client and open it back up.

Try resending your email. If you continue to have issues please contact support.

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