What must one do to avoid Gmail's retarded non-spam filtering?

[jeroen at mompl.net (Jeroen van Aart)]

Erik L wrote:
> Received-SPF: pass ...
> Authentication-Results: mx.google.com; spf=pass ...
> 
> So the problem is unlikely to be a SPF issue, as mentioned in my first e-mail.

http://david.woodhou.se/why-not-spf.html

The lack of SPF records should never be the reason to block an email. 
It's about time SPF is being laid to rest, it's broken, ineffective and 
a flawed concept. Well, it's effective in legitimising spammers and 
breaking forwarding for example, but otherwise...

-- 
http://goldmark.org/jeff/stupid-disclaimers/
http://linuxmafia.com/~rick/faq/plural-of-virus.html