nanog mailing list archives
Re: mail does bounce (was: Customers down?)
From: owen () dixon delong sj ca us (Owen DeLong)
Date: Sun, 2 Jan 2000 12:31:00 -0800
On Sat, 01 January 2000, "Steven J. Sobol" wrote:What I was referring to was a situation where the domain does exist in the root nameservers but the authoritative nameservers are unavailable.So .COM exists in the root servers? How do you decide to treat second level domains (i.e. donelan.com) versus third level domains (i.e. www.donelan.com) versus third level domains under country code domains.
I'll take a stab at this: Attempting to resolve a.b.c.d.e.f.g.h.i If you get back a return value from DNS that says "Authoritative answer, a.b.c.d.e.f.g.h.i does not exist" Bounce the mail. If you get back a return that says "Resolving a.b.c.d.e.f.g.h.i timed out without a return" Queue the mail. This also works for i, h.i, g.h.i, f.g.h.i, etc. Owen
Current thread:
- RE: mail does bounce (was: Customers down?) Sean Donelan (Jan 01)
- <Possible follow-ups>
- Re: mail does bounce (was: Customers down?) Sean Donelan (Jan 01)
- Re: mail does bounce (was: Customers down?) jlewis (Jan 01)
- Re: mail does bounce (was: Customers down?) Sean Donelan (Jan 01)
- RE: mail does bounce (was: Customers down?) Owen DeLong (Jan 02)
- Re: mail does bounce (was: Customers down?) Owen DeLong (Jan 02)
- Re: mail does bounce (was: Customers down?) Christian Kuhtz (Jan 02)
- Re: mail does bounce (was: Customers down?) I Am Not An Isp (Jan 02)
- Re: mail does bounce (was: Customers down?) Christian Kuhtz (Jan 02)
- Re: mail does bounce (was: Customers down?) Sean Donelan (Jan 02)
- Re: mail does bounce (was: Customers down?) Owen DeLong (Jan 02)
- Re: mail does bounce (was: Customers down?) Owen DeLong (Jan 02)
- Re: mail does bounce (was: Customers down?) Sean Donelan (Jan 02)