Not contentious at all. I merely described how I solved the same carburettor problem.
If my car is broke I take it to my nearest garage because I don't know much about cars. After several days of not being able to access my e-mail, and Symantec telling me it was my ISP's fault and my ISP telling me it was Symantec's fault, and many hours of tweaking the NAV settings, I needed to get things sorted out.
Now I might be right and I might be wrong, but when it comes to computers, I think I know as much if not more than the oik down at PC World so I could have spent a tidy sum getting someone to look at it only to come to the same conclusion that I did - which wasn't much of a solution. On the other hand, I could spend £35 and upgrade my NAV in 15 minutes - which both Symantec and my ISP said would probably fix it.
With more time and more knowledge I might have been able to fix the problem without the upgrade. But I've got better things to do with my time.
FWIW, the original error message about losing the connection to the server is rather different to the bounced e-mail and I suspect that the latter is nothing to do with the earlier problems and is the sort of thing that crops up periodically for various reasons.