They did solve the problem, but it took several hours (that I'll never get back) of troubleshooting before I could point to NOD32 as the cause of the problem. I'm really disappointed that ESET made this change and pushed it out without testing.
A couple of weeks ago, NOD32 claimed an email message had the "HTML/Fraud.EK trojan." The message was plain text--no HTML content whatsoever! I reported it as a false positive, but ESET hasn't bothered to acknowledge this.
What is going on at ESET? We are losing productivity. From now on, should I assume that any issues with my email are due to NOD32, not to servers and networking?