BOUNCE tlug: Non-member submission from [SL Baur <steve@example.com>] (fwd)

[Jonathan Q <jq@example.com>]

Forwarded from Steve Baur

---------- Forwarded message ----------
Scott M Stone <sstone@example.com> writes:
 ...
> it looks up the sender domain and figures that an MX record must exist.
> Have your sendmail rewrite the outbound headers to appear as
> 'steve@example.com' or something.  hey, wait, how did you get an
> @example.com address??  neat.

That's me.  The "other Steve".

> Anyway, the remote systems want to see an MX record for the sender
> domain, I'm pretty sure.  Or at least an SOA for it, I think.

Steve's problems are DNS related.  The SOA for the zone file on shako
has a serial number of `502', however there are some hosts that think
the serial number is `200003428'.  Presumably the cached data under
the higher serial number is erroneous.

$ nslookup
> set type=soa
> sk.tsukuba.ac.jp
Server:  ns.jp.tlan
Address:  172.16.37.1

Non-authoritative answer:
sk.tsukuba.ac.jp
        origin = shako.sk.tsukuba.ac.jp
        mail addr = manager.shako.sk.tsukuba.ac.jp
        serial = 502
        refresh = 10800 (3H)
        retry   = 3600 (1H)
        expire  = 604800 (1W)
        minimum ttl = 86400 (1D)

Authoritative answers can be found from:
sk.tsukuba.ac.jp        nameserver = shako.sk.tsukuba.ac.jp
shako.sk.tsukuba.ac.jp  internet address = 130.158.97.253
> server gwyn.tux.org
Default Server:  gwyn.tux.org
Address:  207.96.122.8

> sk.tsukuba.ac.jp
Server:  gwyn.tux.org
Address:  207.96.122.8

Non-authoritative answer:
sk.tsukuba.ac.jp
        origin = shako.sk.tsukuba.ac.jp
        mail addr = manager.shako.sk.tsukuba.ac.jp
        serial = 200003428
        refresh = 10800 (3H)
        retry   = 3600 (1H)
        expire  = 3600000 (5w6d16h)
        minimum ttl = 86400 (1D)

Authoritative answers can be found from:
sk.tsukuba.ac.jp        nameserver = shako.sk.tsukuba.ac.jp
shako.sk.tsukuba.ac.jp  internet address = 130.158.97.253
> server shako.sk.tsukuba.ac.jp
Default Server:  shako.sk.tsukuba.ac.jp
Address:  130.158.97.253

> sk.tsukuba.ac.jp
Server:  shako.sk.tsukuba.ac.jp
Address:  130.158.97.253

sk.tsukuba.ac.jp
        origin = shako.sk.tsukuba.ac.jp
        mail addr = manager.shako.sk.tsukuba.ac.jp
        serial = 502
        refresh = 10800 (3H)
        retry   = 3600 (1H)
        expire  = 604800 (1W)
        minimum ttl = 86400 (1D)
sk.tsukuba.ac.jp        nameserver = shako.sk.tsukuba.ac.jp
shako.sk.tsukuba.ac.jp  internet address = 130.158.97.253



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