Solved Windows Live Mail 421 email error - unexpected failure" message
3-21-11
Description of solved problem: When using Windows Live Mail every now and then an outgoing message would get blocked and the Norton "421 email error - unexpected failure" message would appear.
Problem solved: 3-21-11 Turn off (unchecked) the Norton Internet Security (NIS) outgoing email scan located in Network Protection - email protection. No idea why WLM and NIS can't get along. So many possiblities so little time.
On a new Toshiba i5 laptop I am using the latest versions of x64Windows 7 Home, Windows Live Mail (WLM) and Norton Internet Security 2011 (NIS) v18.5.0.125. I am also using Mozella becuse Firefox is faster then Internet Explorer Web browser that I had problems with right out of the box when I loaded 2010 Office Professional Plus.
Ought to be interesting to see how IE 9 compairs to Firefox 4 that was released today.
Background detail:
Here's what happen. The x64? NIS Outgoing Email Scan (OES) was stopping the transmittal of correct address, simple text, no attachment/s messages. I would get the NIS "421 email error - unexpected failure" message. So we opened the Norton Control Panel and unchecked the outgoing email scan - and that was it. I know this because we tested it on our two email accounts by sending several messages from the Windows 7 laptop via WLM to the old Dell XT laptop. And the instent we turned the Norton OES back-on we got the 421 error message.
Also using a new Cisco Valet Plus long range router the is very friendly. Via wifi it easily supports our two laptops, an HP 210a wireless Photosmart Printer/Scanner and the iPod touch 4.
