After posting yesterday about Norton Antispam breaking email downloads, I may now have to eat my words as I’ve just had the exact same problem happen to a different client. They use NAV but not NIS or Antispam, are with a different ISP and use an email account tied to their domain name. Disabling NAV totally didn’t solve the problem; again I had to use mail2web to remove the offending email.
I’m at a loss to explain this at the moment. The most likely explanation is that it’s due to a recent Norton common client update, but I don’t see why disabling the program didn’t help. Both clients were using OE, but afaik there haven’t been any updates to that recently. The email that halted this connection wasn’t blank, either, it was just a general piece of spam. Any ideas?