Oh, and I didn't DISABLE IPv6, I just don't allow it to transit the network. Perhaps a fine line, but an important one. :)
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Kurt Buff Sent: Thursday, September 19, 2013 4:58 PM To: [email protected] Subject: Re: [Exchange] RE: Google rejecting email <gasp> Disable IPv6? Heresy... :) Kurt On Thu, Sep 19, 2013 at 1:01 PM, Michael B. Smith <[email protected]> wrote: > I found it easier to disable IPv6 core networking, both input rule and > output rule. > > Ymmv. > > Sent from my Windows Phone > ________________________________ > From: Adam Farage > Sent: 9/19/2013 10:55 PM > > To: New Exchange Admin List ([email protected]) > Subject: [Exchange] RE: Google rejecting email > > I actually had someone post this on Reddit (/r/exchangeserver is a > subreddit forum thing I created about 3 months ago) who experienced > the same issues, and how he resolved it: > > http://www.reddit.com/r/exchangeserver/comments/1kw7cc/gmail_rejecting > _mail_from_exchange_because_sender/ > > The TL;DR (too long/dont read) version is that he had to run this: > > " > > I opened a Command Prompt as Administrator and did: > > netsh > interface > 6to4 > set state disabled > .. > teredo > set state disabled > > " > > Check it out though. Friendly crowd, a few MCSM's and MSFT folk and a > Dell guy here and there. > > We need more MVP's on there (cough cough) > ________________________________________ > From: [email protected] <[email protected]> > on behalf of John Cook <[email protected]> > Sent: Thursday, September 19, 2013 3:35 PM > To: New Exchange Admin List ([email protected]) > Subject: [Exchange] Google rejecting email > > So I have a user that is sending out mail to a number of Gmail > accounts but one of them bounces with this error The sender does not > meet basic ipv6 sending guidelines of authentication and rdns > resolution of sending ip This has not happened to anyone else and I > can email to my Gmail account fine. The recommended fix is to create a > reg key and disable IPv6 which I am reticent to do. Exchange 2010 SP3 > on 2008R2, I do not have a static IPv6 address on the server nor have > I ever noted one in our MX records. Anyone else ever run across this? > > TIA > > John W. Cook > Network Operations Manager > Partnership For Strong Families > 5950 NW 1st Place > Gainesville, Fl 32607 > Office (352)-244-1610 > Cell (352) 215-6944 > MCSE, MCP+I, MCTS, CompTIA A+, N+, Security+ VSP4, VTSP4 > > > > > > > ________________________________ > > CONFIDENTIALITY STATEMENT: The information transmitted, or contained > or attached to or with this Notice is intended only for the person or > entity to which it is addressed and may contain Protected Health > Information (PHI), confidential and/or privileged material. Any > review, transmission, dissemination, or other use of, and taking any > action in reliance upon this information by persons or entities other > than the intended recipient without the express written consent of the > sender are prohibited. This information may be protected by the Health > Insurance Portability and Accountability Act of 1996 (HIPAA), and > other Federal and Florida laws. Improper or unauthorized use or > disclosure of this information could result in civil and/or criminal > penalties. > Consider the environment. Please don't print this e-mail unless you > really need to. > > > >
