On Dec 29, 2012, at 9:21 PM, R. Morris wrote:
> if email goes through my backup MX (mail server)
> 

This is likely the source of not just false positives, but a whole bunch of 
false negatives. Why are you using a backup MX?  These are obsolete technology 
from the 1980s when systems weren't always connected to the Internet, and might 
drop off for days at a time.  Unless you need to drop off the net, and you have 
your MX queue set to not return mail for a larger number of days, this really 
isn't a technology choice that is doing you any favors.

If you get rid of your backup MX you'll solve dozens of problems you didn't 
even know you had.

-- 
Jo Rhett
Net Consonance : net philanthropy to improve open source and internet projects.



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