Re: SMTP verification - ReadList.com

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SMTP verification
\ Jacqui Caren (27 Mar 2008)
. \ Victor Duchovni (27 Mar 2008)

9 msg	Multiple IPs
2 msg	Controlling out going messages

Subject:	Re: SMTP verification
Group:	Postfix-users
From:	Victor Duchovni
Date:	27 Mar 2008

On Thu, Mar 27, 2008 at 06:16:46PM +0000, Jacqui Caren wrote:

> Hello, I am trying to gauge how many sites use SMTP verification.
>
> If anyone can point me to sites with any relevant (reliable) stats.
>
> Assuming there is no reliable data, rather than pollute the list with
> heaps of yays or nays if people would like to email me any info they can
> I will summarise back to the list..
> i.e.
>
> How many domains: 3 (I would like to be able to summarise by domain)
> SAV in use: yes/no
> SAV Mode: Sync (no SMTP response unti verify completes)
> SAV Mode: Async (SMTP response 4xx's until an async vrfy comes back)

Postfix is neither "Sync" nor "Async", if no status is cached, it waits
at most 6s (http://www.postfix.org/ADDRESS_VERIFICATION_README.html#how)
for the probe response to arrive, and only then response with 4xx.

--
Viktor.

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