I've been having some problems with getting all the emails sent from Nabble to my email address. I knew they were being sent out because I subscribed a different email address (at a different ISP) and got them all. So I went to the ISP where I wasn't getting them and this is the response I got:
The problem appears to be with nabble.com. They are getting hit with the RDNS_NONE rule which means their reverse DNS isn't setup correctly for the mail server. If you look into the headers of a nabble message, you should see that this rule is getting hit. We give RDNS_NONE a higher score point, because it's a serious violation not to have a correct reverse DNS these days. I looked through one of the messages and I see they are sending mail from:
162.253.133.43
That Reverse DNS resolves back to:
static.162.253.133.43.macminivault.com
But there is no entry for static.162.253.133.43.macminivault.com. And really it should resolve back to: mwork.nabble.com which is their mail server, because mwork.nabble.com also resolves to 162.253.133.43. This is what trips that rule in SpamAssassin.
I know that MANY of my members have problems with the Nabble Emails going to their SPAM folder. Can you look at making the change suggested above? Perhaps this would solve the problem with Nabble Emails going to SPAM.
Thanks,
Coleen