Yes, thats correct, we have always worked with blocking and do not use
the friends system at all.

So far we were fine, but ....

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Subject: [SurgeMail List] re:  Yahoo.com Mail problem
Sent: Thu, 17 Oct 2013 14:12:40 -0500
From: surgemail-support <surgemailHIDDEN@t@netwinsite.com>
To:
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> My guess is you might have modified the settings so your rbl is blocking
> email instead of scoring it, is that possible?.  That prevents friends
> from taking over and letting the messages through when they are known.
>  
> So, the solution is probably to change the relevant settings back to
> scoring.
>  
> If that doesn't fix it, send us your surgemail.ini and the output of 
> tellmail status
>  
>     ChrisP.
>  
> 
>     Hi,
>      
>     I have some customers who use yahoo E-Mail addresses. They frequently
>     get blocked on our system.
>      
>     I did already take spamcop out of our RBL lists, but now spamhaus.org
>     blocked it.
>      
>     Yahoo uses so many different IPs, no idea how to whitelist them all, as
>     I don't know them all.
>      
>     If I would whilelist the yahoo.com domain, a lot of spam from other
>     sources would go through.
>      
>     I now tried g_spf_skip_from - but I would have to do that for every
>     customer.
>      
>     How do you handle this ?
>      
>     Thanks
>      
>     Stephan
>      
> 
>  
> 
>