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Re: [Uta] UTA: Server certificate management (Re: Last Call: <draft-ietf-uta-email-tls-certs-05.txt>)

Alexey Melnikov <alexey.melnikov@isode.com> Wed, 02 December 2015 15:48 UTC

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Date: Wed, 02 Dec 2015 15:48:33 +0000
From: Alexey Melnikov <alexey.melnikov@isode.com>
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To: John R Levine <johnl@taugh.com>
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Subject: Re: [Uta] UTA: Server certificate management (Re: Last Call: <draft-ietf-uta-email-tls-certs-05.txt>)
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On 02/12/2015 15:40, John R Levine wrote:
>>> Given that there are mail services with tens of thousands of domains
>>> on the same set of servers, and probably at least one mail service
>>> with 100,000 domains, this really doesn't scale.
>> Yes, I can add a note about this. Also recommending use of SNI (case 
>> 1) might be a good idea.
>
> If there's no SRV-ID, you don't need SNI since all 100,000 domains 
> point at the same server name.
Yes, but then they can't be verified automatically by MUAs, so each of 
them would need to be approved manually by users.

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