I only know that they have a pools of servers, and they've done a good
deal of customization. I expect that most details are kept close to the
vest.
--
-Eric 'shubes'
On 10/06/2013 07:12 PM, Fernando Endangan wrote:
Thank you for sharing. Do you have an idea how gmail/yahoo's mail
infrastructure is configured? A brief overview maybe.
On 9/27/2013 7:02 PM, Eric Shubert wrote:
Not a dumb question at all.
That would appear to be the simplest way to set up a
single/consolidated outbound host (which did not occur to me). For
alternative security, you might set up a relay account and use
smtp-auth with the relay. This would be simpler and a little more
efficient than using a VPN. If not using a VPN, you could restrict
connections to specific IPs for additional security.
While this configuration is simple to implement and provides a single
outbound exit point, I'm not sure that it provides much of a solution
to the problem of "experiencing high queue". All of the submissions
would still travel through each of the 6 current servers. The only
difference is that, with presumably a fast network connection, the
emails will make a rapid exit to the smarthost (which isn't very
"smart" without an ability to authenticate accounts).
I think a better solution would be to make the smarthost able to
authenticate users, so that submissions can be made directly to the
smarthost, eliminating the need for these messages to hit the 6
existing servers at all.
I think that centralizing all of the domains (and accounts) into a
single vpopmail database is in order here. This could be done with a
(virtual) authentication server, which would service all of the 6
existing servers (and future smarthost), replacing the 6 mysql
instances with a single mysql vpopmail database on the authentication
server. If you don't have a virtual platform to use to implement an
authentication (mysql) host, you could consolidate all of the vpopmail
databases together on the (future) smarthost outbound server. This
could be done initially, then changing submissions over to the
smarthost should be a simple DNS change (provided your users' clients
use a separate DNS name for submissions).
I'm liking this solution the more I think of it. Of course I could be
missing something. ;)
Anyone care to share thoughts about this?
Thanks.
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