Hi All,

I was looking for a SPAM filter to apply to my domain. Postini seemed to have what I wanted and was low cost enough for my family mail needs to justify it.

I wanted Postini to filter my mail, deliver it to Lunarpages and my family to access the Lunarpages email servers at mail.mydomain.com as normal - so I don't have to change every machine in the house but they get nice clean mail!

2 days ago I signed up for Postini mail filtering and after a dialog with Lunarpages everything is now smooth. As I am not an email expert I didn't supply all the information I needed to in my first email request and so it took longer than I expected. To help others who are also thinking about using Postini the way I have here are the steps you need to go through:

1. Sign up with Postini for the Email Security package, you specify your domain name and the number of email users in the domain that you want protected by the filtering.
2. During the account activation phase Positini lists (in my case 4 servers) the servers that must be edited in to your domains MX record and their weighting. Paste this info in to a blank email.
3. Send an email to Lunarpages support telling them the following:

a. That you want to use the Postini service to filter mail and then have it deliver the mail to Lunarpages mail server. This means that Lunarpages should not block mail from the Postini server and you want the mail to be served locally by Lunarpages (and not use a remote domain).
b. The MX record update information you got from postini that Support need to edit in to the record for you.
c. Provide your account verification as described here: https://support.lunarpages.com/knowledge_bases/show/83

4. Go to the Postini account management webpage and add the additional users to the email domain that will have mail filtered.
5. Select the "Inbound" tab and then the "Delivery Mgr" pager. Click Edit
6. Select  "Use My own email server" and fill in one of the email server text boxes with the Lunarpages email server url.
7. Wait for the MX record updates to happen ( up to 48hrs - but mine took 4).
8. Try sending an email to these accounts.

In my case I missed out step "a." and at first did not tell Lunarpages that I wanted to continue using their servers! As a result all mail was reverted to sender with 550 errors.  A few follow up emails to support was all it took to clear the problem.

I hope this is useful to someone.

Cheers,
Paul