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Email Error 421 with Internet security 2011
I get an occasional email error message when sending an email, saying "Email Error 421 - could not send - try again later."
I am using Microsoft Outlook 2007 with Windows 7 64-bit, and Internet Security 2011. IS 2011 is an updated installation over IS 2010. This was never a problem with IS 2010.
I looked for online solutions, the only thing I found was on the Business side of the Norton site, which said this was a known error but unresolved at present, and to Turn Off Email Scanning. I did this, but have no idea if it solved the problem since it is an intermittent issue. Also, IS now says "attention needed" and asks me to "fix it now.".
Any suggestions are certainly appreciated,