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[Tools-discuss] Re: IETF mail service outage planned for 1200 UTC on 27 June 2024

Robert Sparks <rjsparks@nostrum.com> Tue, 25 June 2024 20:27 UTC

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Date: Tue, 25 Jun 2024 15:26:54 -0500
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To: Jim Reid <jim@rfc1035.com>, tools-discuss <tools-discuss@ietf.org>
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From: Robert Sparks <rjsparks@nostrum.com>
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Subject: [Tools-discuss] Re: IETF mail service outage planned for 1200 UTC on 27 June 2024
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On 6/25/24 3:02 PM, Jim Reid wrote:
>
>> On 25 Jun 2024, at 20:52, Robert Sparks <rjsparks@nostrum.com> wrote:
>>
>> This transition moves our primary mail sending to be through AWS. The relevant SPF records have already been updated.
> Robert, what IP addresses (blocks) are AWS going to use for this? I can’t be the only IETFer who will need to put these in an allowlist.

That's all in the spf records:

ietf.org.        300    IN    TXT    "v=spf1 ip4:50.223.129.192/26 
ip6:2001:559:c4c7::/48 a:ietf.org mx:mail.ietf.org ip4:192.95.54.32/27 
ip6:2607:5300:60:9ccf::/64 ip4:54.240.73.154/31 include:_spf.google.com 
include:spf.hostedrt.com include:amazonses.com ~all"

amazonses.com.        723    IN    TXT    "v=spf1 ip4:199.255.192.0/22 
ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 
ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 
ip4:54.240.64.0/19 ip4:54.240.96.0/19 ip4:76.223.128.0/19 
ip4:216.221.160.0/19 ip4:206.55.144.0/20 -all"

Initially, it could be from any address in the amazonses.com include. It 
will settle over time to one of 54.240.73.154 or 54.240.73.155

RjS

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