I'd say that Googles behaviour in this instance is stupid and somebody
influential should get them to fix it at their end. Exim should
naturally still deliver all of these messages, but there will be delays
as per the retry rule configuration. This is going to affect a *lot* of
systems and generate a lot of complaints to Google.
Mike
On 24/05/12 22:18, Todd Lyons wrote:
> We might need to add a knob to the smtp transport that says to not
> group different domains per recipient MX. The question is whether we
> think this is enough of an issue to add this or if the existing queue
> management compensates for Google's local policy. I assume some of
> that answer will depend on the volume that any particular $SENDER is
> actually moving in their direction.
>
> ...Todd
>
>
> ---------- Forwarded message ----------
> From: Andy Davidson <andy@???>
> Date: Thu, May 24, 2012 at 7:35 AM
> Subject: [mailop] Google - multiple domain deliveries - new behaviour ?
> To: mailop@???
>
>
> Hi,
>
> I run a number of busy mailing lists, and debugged some slow delivery
> complaints this morning.
>
> I group email delivery per destination MX host using Exim, so that if
> xxx.com and yyy.com point to the same MX server, they can be delivered
> in the same SMTP transaction. I have noticed today that google do not
> allow multiple domain names in the same transaction any more :
>
> 2012-05-24 15:31:22 1SXZ2G-0004ka-D4 SMTP error from remote mail
> server after RCPT TO:<xxxx@???>: host aspmx.l.google.com
> [173.194.79.26]: 451-4.3.0 Multiple destination domains per
> transaction is unsupported. Please\n451 4.3.0 try again.
> op2si1498187pbc.196
> 2012-05-24 15:31:26 1SXZ2G-0004ka-D4 SMTP error from remote mail
> server after RCPT TO:<xxxx@???>: host aspmx.l.google.com
> [173.194.79.26]: 451-4.3.0 Multiple destination domains per
> transaction is unsupported. Please\n451 4.3.0 try again.
> op2si1498187pbc.196
> 2012-05-24 15:31:26 1SXZ2G-0004ka-D4 SMTP error from remote mail
> server after RCPT TO:<xxxx@???>: host aspmx.l.google.com
> [173.194.79.26]: 451-4.3.0 Multiple destination domains per
> transaction is unsupported. Please\n451 4.3.0 try again.
> op2si1498187pbc.196
>
> Is this correct behaviour, in other words have I been trying to do
> something incorrect all along ?
>
> Why would they do this ?
>
> Is there a whitelist mechanism ?
>
> Andy
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> mailop@???
> http://chilli.nosignal.org/mailman/listinfo/mailop
>
>
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Mike Cardwell https://grepular.com/ http://cardwellit.com/
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