I don't know why. It gets returned nearly daily, but never appears in the webmail system, so it's not actually coming in through the ISP. I can't find anything under AVG that gives me a clue.
The emails were sent three months ago. The recipients received them.
Chris
Subject: Undelivered Mail Returned to Sender
This is the AVG E-mail Scanner program.
I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.
The e-mail server has responded with the following error:
-------------------------------------------------------------------
Cannot open SMTP connection to '206.46.232.12'
Connect: A socket operation was attempted to an unreachable host. (10065)
-------------------------------------------------------------------
Your e-mail message is being returned to you in the next part of this
message. Try to send the message again.
Should you need assistance, please contact your administrator or your
Internet service provider.
You can also verify e-mail client's settings, for instance:
- whether your SMTP autentization has been configured
- whether you have provided correct SMTP server name
- whether the sender's address responds to the used SMTP server domain
