----- "Scott Howard" <scott@doc.net.au> wrote:
On Mon, May 17, 2010 at 6:08 AM, Jay R. Ashworth <jra@baylink.com> wrote:
No discernable delay on close. So apparently at least *some* Blackberry incoming MXs are broke. Improperly thinking I'm on a blacklist, and dropping the connection without telling me why is a valid value for "broke".
Yet it does seem that's the kind of "broke" that is occurring. I'm seeing a 100% success rate in connecting from a datacenter IP, and 100% failure rate (with the same symptoms you've described) from a cable modem IP.
I believe the RIM BIS front-end boxes are IronPorts, so checking your IP's SenderBase score would be a good place to start (http://senderbase.org)
I thought I'd folo'd to the list on this, but I don't see it. I was on CBL for some reason; no other lists. I don't see any daemon spam coming out through my firewall, but, for some reason, I wasn't dropping it. I am now. Problem solved, and I've added another useful lookup tool to the outages.org dashboard; MXtools, who were nice enough to tweet about it, so, more eyeballs. Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com '87 e24 St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274 Start a man a fire, and he'll be warm all night. Set a man on fire, and he'll be warm for the rest of his life.