Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-21 Thread David Hofstee
. David Van: mailop [mailto:mailop-boun...@mailop.org] Namens Franck Martin Verzonden: vrijdag 18 december 2015 23:58 Aan: Karen Balle CC: Brandon Long; mailop; Ian Eiloart Onderwerp: Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6 http://www.boogietools.com/ The above does some good

Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-18 Thread Franck Martin
http://www.boogietools.com/ The above does some good job in classifying emails See how they convert bounces into classes: http://www.boogietools.com/Products/Windows/BoogieBounceAPI/Email-Bounce-Boogie-Bounce-API-Categories.asp?sReturnURL=/Products/Windows/BoogieBounceAPI/Default.asp On Fri, De

Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-18 Thread Karen Balle
On Fri, Dec 18, 2015 at 10:35 AM, Ian Eiloart wrote: > > Well, that should be pretty clear from the 4xx vs 5xx status. If it’s 4xx, > you should queue the message for later delivery, otherwise generate a > bounce. I guess if the recipient wants to indicate that you should reduce > your sending ra

Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-18 Thread Karen Balle
As Brandon points out, it's not that simple. Some nice examples from one customer's bounce logs today - "552 Transaction @ failed, remote said "550 No such user" (#5.1.1)" Obviously, we don't want to resend to this address again, but... is it a 552 (mailbox exceeded allocation), a 550 (mailbox un

Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-18 Thread Ian Eiloart
> On 18 Dec 2015, at 01:55, Karen Balle wrote: > > Brandon, > > I really like this idea, even as a mental exercise. There would be a lot of > usefulness in being able to clearly dictate from the enhanced codes when our > MTAs should stop, back off, or go into an extended timeout. Well, that

Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-17 Thread Karen Balle
Brandon, I really like this idea, even as a mental exercise. There would be a lot of usefulness in being able to clearly dictate from the enhanced codes when our MTAs should stop, back off, or go into an extended timeout. Perhaps something like having the enhanced code be tied to the primary rea

Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-17 Thread David Hofstee
. It could be temporary. Van: mailop [mailto:mailop-boun...@mailop.org] Namens Brandon Long Verzonden: donderdag 17 december 2015 05:35 Aan: Karen Balle CC: mailop; Ian Eiloart Onderwerp: Re: [mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6 We have automated systems, especially for

[mailop] NDRs and DSNs was: Re: Delivery to gmail via IPv6

2015-12-16 Thread Karen Balle
Since there's been a lot of drift on this topic and I'm not talking about IPv6, DNSSEC, or delivery to Gmail For NDRs and DSNs to be truly useful to an ESP, we tend to break them down into more buckets than two. Hard bounce/invalid (do not retry, generally a 5xx) Soft bounce (temporary and re