Hi everyone, I'm under attack spam, to avoid problems I activated greylisting, it's all ok the only problem is with gmail.com has a delay of 24h or two day.
I tried to upload ip for exceptions but the situation does not change.
windows 2008 ME 8.53 - mxuptime -
Tips?
Thank you
Grelisting and gmail.com problem
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- Posts: 8
- Joined: Tue Aug 06, 2013 8:10 am
Re: Grelisting and gmail.com problem
Hi Robocop,
Unfortunately that won't help because Google's email service uses so many different IP addresses. Its a constant pain for greylists and Google's answer is to whitelist gmail. Given how much rubbish gets sent using gmail addresses these days thats not always an option, especially on a busy mail server. It might be possible to get a complete list of the IP addresses that Google use from somewhere but I've never tried looking.
Unfortunately that won't help because Google's email service uses so many different IP addresses. Its a constant pain for greylists and Google's answer is to whitelist gmail. Given how much rubbish gets sent using gmail addresses these days thats not always an option, especially on a busy mail server. It might be possible to get a complete list of the IP addresses that Google use from somewhere but I've never tried looking.
Re: Grelisting and gmail.com problem
Not the best solution to this problem but these work for me with postfix.
# Google IPv4 subnets
64.18.0.0/20
64.233.160.0/19
66.102.0.0/20
66.249.80.0/20
72.14.192.0/18
74.125.0.0/16
173.194.0.0/16
207.126.144.0/20
209.85.128.0/17
216.239.32.0/19
# Google IPv6 subnets
2001:4860:4000::/36
2404:6800:4000::/36
2607:f8b0:4000::/36
2800:3f0:4000::/36
2a004000::/36
2c0f:fb50:4000::/36
# Google IPv4 subnets
64.18.0.0/20
64.233.160.0/19
66.102.0.0/20
66.249.80.0/20
72.14.192.0/18
74.125.0.0/16
173.194.0.0/16
207.126.144.0/20
209.85.128.0/17
216.239.32.0/19
# Google IPv6 subnets
2001:4860:4000::/36
2404:6800:4000::/36
2607:f8b0:4000::/36
2800:3f0:4000::/36
2a004000::/36
2c0f:fb50:4000::/36