Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
On Saturday 31 January 2009 10:29:35 Wietse Venema wrote: > Well, that is just too bad. Postfix does not have to solve every > problem that happens in a down-stream MTA. We live in a free world, > and the market is always right. Agreed. Which is why I informed if it's possible using standard conf

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Wietse Venema
Melvyn Sopacua: > On Saturday 31 January 2009 09:45:16 Wietse Venema wrote: > > Melvyn Sopacua: > > > On Saturday 31 January 2009 08:03:17 Wietse Venema wrote: > > > > Melvyn Sopacua: > > > > > The problem is that postfix will see "success" initially: > > > > > > > > > > - client sends > > > > > -

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
On Saturday 31 January 2009 09:22:28 Terry Carmen wrote: > Melvyn Sopacua wrote: > > On Saturday 31 January 2009 08:03:17 Wietse Venema wrote: > >> Melvyn Sopacua: > >>> The problem is that postfix will see "success" initially: > >>> > >>> - client sends > >>> - postfix receives > >>> - postfix rel

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
On Saturday 31 January 2009 09:45:16 Wietse Venema wrote: > Melvyn Sopacua: > > On Saturday 31 January 2009 08:03:17 Wietse Venema wrote: > > > Melvyn Sopacua: > > > > The problem is that postfix will see "success" initially: > > > > > > > > - client sends > > > > - postfix receives > > > > - postf

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Wietse Venema
Melvyn Sopacua: > On Saturday 31 January 2009 08:03:17 Wietse Venema wrote: > > Melvyn Sopacua: > > > The problem is that postfix will see "success" initially: > > > > > > - client sends > > > - postfix receives > > > - postfix relays, gets OK > > > > postfix deletes queued message > > > - exch

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Terry Carmen
Melvyn Sopacua wrote: On Saturday 31 January 2009 08:03:17 Wietse Venema wrote: Melvyn Sopacua: The problem is that postfix will see "success" initially: - client sends - postfix receives - postfix relays, gets OK > postfix deletes queued message - exchange checks quota, decides

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
On Saturday 31 January 2009 08:03:17 Wietse Venema wrote: > Melvyn Sopacua: > > The problem is that postfix will see "success" initially: > > > > - client sends > > - postfix receives > > - postfix relays, gets OK > > > postfix deletes queued message > > - exchange checks quota, decides mailbox

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
On Saturday 31 January 2009 08:21:56 Sahil Tandon wrote: > On Sat, 31 Jan 2009, Melvyn Sopacua wrote: > > @example.comlocalmailbox, |logthis, relay:[mx2.example.com] > > Hm, and where is this access map syntax documented? No where, it's pseudo code to explain what my 'backup' service woul

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Sahil Tandon
On Sat, 31 Jan 2009, Melvyn Sopacua wrote: > On Friday 30 January 2009 21:12:30 Victor Duchovni wrote: > > On Fri, Jan 30, 2009 at 08:42:22PM -0900, Melvyn Sopacua wrote: > > > 1) Accept mail for example.com as primary MX (yes, possible) > > > 2) Relay to mx2.example.com (yes, possible) > > > 3) I

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Wietse Venema
Melvyn Sopacua: > The problem is that postfix will see "success" initially: > > - client sends > - postfix receives > - postfix relays, gets OK > > postfix deletes queued message > - exchange checks quota, decides mailbox is full > - exchange sends DSN to client Use reject_unverified_recipien

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
On Saturday 31 January 2009 06:49:28 Terry Carmen wrote: > Melvyn Sopacua wrote: > > The reason is that a client has unsolved ongoing configuration issues > > with their Exchange server and can no longer afford to loose mail because > > of it. The Exchange server is not my problem(tm). > > > > . .

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Melvyn Sopacua
Hi Victor, On Friday 30 January 2009 21:12:30 Victor Duchovni wrote: > On Fri, Jan 30, 2009 at 08:42:22PM -0900, Melvyn Sopacua wrote: > > 1) Accept mail for example.com as primary MX (yes, possible) > > 2) Relay to mx2.example.com (yes, possible) > > 3) If mx2.example.com gives fatal error, reduc

Re: Mail backup for malfunctioning MTA

2009-01-31 Thread Terry Carmen
Melvyn Sopacua wrote: The reason is that a client has unsolved ongoing configuration issues with their Exchange server and can no longer afford to loose mail because of it. The Exchange server is not my problem(tm). . . . 4) Magically catch the accepted mail that bounces after completed tra

Re: Mail backup for malfunctioning MTA

2009-01-30 Thread Victor Duchovni
On Fri, Jan 30, 2009 at 08:42:22PM -0900, Melvyn Sopacua wrote: > 1) Accept mail for example.com as primary MX (yes, possible) > 2) Relay to mx2.example.com (yes, possible) > 3) If mx2.example.com gives fatal error, reduce to transient and try again > later (not sure if relay -o soft_bounce=yes w

Mail backup for malfunctioning MTA

2009-01-30 Thread Melvyn Sopacua
Hello, I'd like to know if I can provide the following solution using postfix: 1) Accept mail for example.com as primary MX (yes, possible) 2) Relay to mx2.example.com (yes, possible) 3) If mx2.example.com gives fatal error, reduce to transient and try again later (not sure if relay -o soft_boun