I actually don't know the specifics of the e-mail server communication problem but I still believe the fact that you were able to successfully connect at one point cleared up the problem for the time being.
The fix has now been released, so, once you have that you should be able to leave the e-mail scanning enabled. If your machine has been one for at least two four hour periods and then rebooted since yesterday, you probably already have the update. You can check Help & Support -> About to see if you the fixed 16.1 version or not. If you don't you should be able to run LiveUpdate once or twice to get the fix.
I can't say if the problem really is solved. This weekend I thought not because there was the error again, but that was a problem with my provider because browsing internet didn't work either.
Today I got the error again but after an immediate retry the problem was not there anymore...
Try a search here on that error code 3040, 40028 I just did so and for example this thread has a solution that I've seen posted in others: turn off UAC in VISTA (Assuming you are using VISTA?)
I have NIS 2009 version 16.1.0.33, I am still seeing the "Could not connect to server mail.server.; the connection was refused" using Thunderbird ". I have disabled the scan mail and scan messages option so we are not getting annoyed by this. Like others have said, a restart works before I disabled the mail scan, but only temporary. I have not had problems with NIS2008, not to happy with 2009 version. Is there a patch for this?
The problem "Could not connect to server" is definitively not solved. Computer-2 now got the problem again. The disabling of email-scanning still works.
The reported other problem, see 2 messages above is solved disabling the UAC.
Since turning off the email scanning I have not had the "could not connect to server" issue. I hope Norton gets this fixed, I would like to have email scanning on, one of the reasons I purchased NIS2009.
Now I also get the problem when email-scanning is turned off. Since the update even more problems.
When you say that you get the problem when email scanning is turned off, was scanning turned off from the moment you started your machine or did you turn it off latter, perhaps after you started see the problem?
When you say that you get the problem when email scanning is turned off, was scanning turned off from the moment you started your machine or did you turn it off latter, perhaps after you started see the problem?
If e-mail scanning is disabled, it sounds like you've run into a new issue. Is the problem still intermittent or are you no longer able to connect to your e-mail server at?
Since it's intermittent this could be hard to track down.
When you get a failure, does it always fail if you immediately try again? 5 minutes latter? If you log off and log back on? Restart the system? I believe that you already answered the last question but I'm asking again just to make sure and make the set of questions complete.
This morning the problem showed up again. I waited for more than 5 minutes and than did a “Get mail” again. The problem was still there. Logging out and logging in solved the problem again.
Any word on a patch for this issue, it has been well over a month? I re-enabled mail scanning in NIS 2009 and the problem came right back where my thunderbird could not connect to any of my SMTP servers to download email. Once I turned it off, the problem went away.
This is NIS 2009 problem as I never had this with 2008.