Re: Q: Postfix MTA as a router - callback verification

2012-06-15 Thread Mikael Bak
On 06/15/2012 06:03 AM, Adam Bradley wrote: Sorry, but this sounds to me like an accident waiting to happen. I would /strongly/ recommend getting a proper recipient list and populating transport_maps with a user-host mapping. My only concern is scalability, is there

Re: Q: Postfix MTA as a router - callback verification

2012-06-15 Thread Noel Jones
On 6/14/2012 11:03 PM, Adam Bradley wrote: Sorry, but this sounds to me like an accident waiting to happen. I would /strongly/ recommend getting a proper recipient list and populating transport_maps with a user-host mapping. My only concern is scalability, is there

Re: Q: Postfix MTA as a router - callback verification

2012-06-15 Thread Viktor Dukhovni
On Fri, Jun 15, 2012 at 12:03:55PM +0800, Adam Bradley wrote: Given I now know you can't achieve the approach above I'll pursue using a lookup table. However, with around 5 million users, address verification was looking like the best option. No, a lookup table scales much better. My only

Q: Postfix MTA as a router - callback verification

2012-06-14 Thread Adam Bradley
I have a situation where email delivered to a single namespace needs to be delivered to a user who could be in one of a number of downstream system (but we don't know which one). I was wondering if I could use Callback Verification http://en.wikipedia.org/wiki/Callback_verification to achieve

Re: Q: Postfix MTA as a router - callback verification

2012-06-14 Thread Noel Jones
On 6/14/2012 8:38 PM, Adam Bradley wrote: I have a situation where email delivered to a single namespace needs to be delivered to a user who could be in one of a number of downstream system (but we don't know which one that sounds... broken. I was wondering if I could use Callback

Re: Q: Postfix MTA as a router - callback verification

2012-06-14 Thread Adam Bradley
Noel, Inline. On Fri, Jun 15, 2012 at 11:25 AM, Noel Jones njo...@megan.vbhcs.org wrote: On 6/14/2012 8:38 PM, Adam Bradley wrote: I have a situation where email delivered to a single namespace needs to be delivered to a user who could be in one of a number of downstream system (but we