imz-ez
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Gmail rejected our domain (Exchange 2010) emails
We are using Microsoft Exchange 2010. From the last 3 days we are facing problem. Whenever we send email on any gmail address, Gmail rejected our emails and we receive following error message.
mx.google.com gave this error:
[2002:6f44:630e::6f44:630e
Here I would like to mention that our SPF, PTR records are ok. Our IP is not blacklisted and IV6 is also disabled on our network card. Still we are unable to send email. It is requested to please resolve our issue.
mx.google.com gave this error:
[2002:6f44:630e::6f44:630e
Here I would like to mention that our SPF, PTR records are ok. Our IP is not blacklisted and IV6 is also disabled on our network card. Still we are unable to send email. It is requested to please resolve our issue.
Your reverse DNS is resolving correctly also?
have you removed ivp6 from your send commector in exchange?
ASKER
Yes our reverse DNS is resolving well. there is no issue with it.
ASKER
Please guide me how can I removed ivp6 from send connector?
or turn ivp6 back on the nic..
I would not recommend disabling IPv6 on the exchange server along with Simon. It can lead to various issues.
ASKER
My IPV6 is disabled for the last 3 years but I have not faced any issues. I am facing this issue for the last 3 days.
I would contact your ISP to see if they changed something. As stated above. Your operations have been running perfectly fine so it might be something outside of your infrastructure.
ASKER
So I should ask from ISP to disable IPV6 from our Huweai Router?
ASKER
One more thing. our one department send bulk job emails (some 1000) daily to yahoo , gmail and Hotmail. Is that could be reason that gmail treats our emails as spam? Any idea?
You would get a "google has suspected suspicious activity" warning (something along those lines as being marked for SPAM).
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ASKER
Issue has been resolved. Thanks Simon for your excellent support.
Therefore if you have just unselected the option on the network card, reselect it and reboot the server so that you don't have further problems with Exchange.
Your ISP has almost certainly enabled IPv6 on your connection and you need to turn it off on the router, so that the traffic doesn't go out over IPv6 at all.
Simon.