Re: always get 450 for non-existent domain

D G Teed: > In your opinion. In our practical situation, it would be a benefit > if there was flexibility, and we could decide how postfix > treats "no DNS reply". In my real-world experience, there are brief network outages all the time. It would be really bad if all mail were returned as undeli

Re: always get 450 for non-existent domain

On Sat, 19 Dec 2009, tobi wrote: > >> D G Teed wrote: > > I'm not the exchange admin and I know little about it. > > I don't know if it retries every 5 minutes or 30 minutes. > > It doesn't matter. What matters is that email is > > massively slowed down for delivery out of exchange. > > I think

Re: always get 450 for non-existent domain

Am 19.12.2009 16:30, schrieb D G Teed: > On Sat, Dec 19, 2009 at 10:40 AM, John Peach wrote: > > >> On Sat, 19 Dec 2009 04:40:02 -0400 >> D G Teed wrote: >> >> [snip] >> >> >>> Due to the hardwired default of 450, all sent mail becomes sluggish >>> on the Exchange queue as hundreds of mes

Re: always get 450 for non-existent domain

On Sat, Dec 19, 2009 at 10:40 AM, John Peach wrote: > On Sat, 19 Dec 2009 04:40:02 -0400 > D G Teed wrote: > > [snip] > > > > > Due to the hardwired default of 450, all sent mail becomes sluggish > > on the Exchange queue as hundreds of messages are retried > > every few minutes (one mistyped do

Re: always get 450 for non-existent domain

On Sat, 19 Dec 2009 04:40:02 -0400 D G Teed wrote: [snip] > > Due to the hardwired default of 450, all sent mail becomes sluggish > on the Exchange queue as hundreds of messages are retried > every few minutes (one mistyped domain in a mail list triggers this > behaviour in MS Exchange). Fix

Re: always get 450 for non-existent domain

D G Teed wrote: On Fri, Dec 18, 2009 at 7:52 PM, Wietse Venema > wrote: Due to the hardwired default of 450, all sent mail becomes sluggish on the Exchange queue as hundreds of messages are retried every few minutes (one mistyped domain in a mail list triggers this

Re: always get 450 for non-existent domain

On Fri, Dec 18, 2009 at 7:52 PM, Wietse Venema wrote: > D G Teed: > > So, this is an uncontrollable setting. The response from > > host not found should be something we can configure, > > not hardwired to defer. > > Postfix handles "host does not exist" as a permanent error. > > Postfix handles

Re: always get 450 for non-existent domain

D G Teed: > So, this is an uncontrollable setting. The response from > host not found should be something we can configure, > not hardwired to defer. Postfix handles "host does not exist" as a permanent error. Postfix handles "no DNS reply" as a non-permanent error. It is a mistake to handle "n

Re: always get 450 for non-existent domain

On Fri, Dec 18, 2009 at 4:41 PM, Noel Jones wrote: > On 12/18/2009 2:14 PM, D G Teed wrote: > >> We have an smtp outbound-only service on postfix. >> Users on exchange are relayed out through this. >> >> Once in awhile someone has a typo in their domain name. >> Postfix bounces it back to exchang

Re: always get 450 for non-existent domain

On 12/18/2009 2:14 PM, D G Teed wrote: We have an smtp outbound-only service on postfix. Users on exchange are relayed out through this. Once in awhile someone has a typo in their domain name. Postfix bounces it back to exchange with 450 defer Dec 18 15:48:40 smtp postfix-internal/smtpd[21635]:

Re: always get 450 for non-existent domain

On 12/18/2009, D G Teed (donald.t...@gmail.com) wrote: > > The remaining matches for 450 from running postconf | grep 450 are few: Postconf -n output?

always get 450 for non-existent domain

We have an smtp outbound-only service on postfix. Users on exchange are relayed out through this. Once in awhile someone has a typo in their domain name. Postfix bounces it back to exchange with 450 defer Dec 18 15:48:40 smtp postfix-internal/smtpd[21635]: NOQUEUE: reject: RCPT from labrador2.exa