mx records for tmo.blackberry.com

[Philipp Stader]

Hi everyone,

i noticed a problem sending mails to us...@tmo.blackberry.net.
Exchange 2003 tells me it's unable to bind to server in DNS. So
figured i will want to give nslookup a shot.

U:\>nslookup
Default Server: server5.activedirectorydomain.com
Address: 192.168.1.18

> set type=mx
> set timeout=360
> tmo.blackberry.net
Server: server5.activedirectorydomain.com
Address: 192.168.1.18

*** server5.activedirectorydomain.com can't find tmo.blackberry.net:
Server failed

grrr.

I checked to what servers the DNS server forwards queries it can't
answer: 205.171.3.65 & 205.171.2.65 (Resolver1/2.qwest.net) When i
query one of them directly i get a fine answer to my question.

> server 205.171.3.65
Default Server: resolver1.qwest.net
Address: 205.171.3.65
> set type=mx
> set timeout=360
> tmo.blackberry.net
Server: resolver1.qwest.net
Address: 205.171.3.65

Non-authoritative answer:
tmo.blackberry.net MX preference = 10, mail exchanger =
mx06.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx07.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx08.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx09.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx10.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx01.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx02.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx03.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx04.bwc.na.bb.net
tmo.blackberry.net MX preference = 10, mail exchanger =
mx05.bwc.na.bb.net
(bb expands to blackberry)
blackberry.net nameserver = xns01ykf.rim.net
blackberry.net nameserver = xns01lhr.rim.net
mx01.bwc.na.blackberry.net internet address = 206.51.26.128
mx01.bwc.na.blackberry.net internet address = 206.51.26.154
mx02.bwc.na.blackberry.net internet address = 206.51.26.208
mx02.bwc.na.blackberry.net internet address = 206.51.26.129
mx03.bwc.na.blackberry.net internet address = 206.51.26.214
mx03.bwc.na.blackberry.net internet address = 206.51.26.130
mx04.bwc.na.blackberry.net internet address = 206.51.26.131
mx04.bwc.na.blackberry.net internet address = 206.51.26.215
mx05.bwc.na.blackberry.net internet address = 206.51.26.132
mx05.bwc.na.blackberry.net internet address = 206.51.26.223
mx06.bwc.na.blackberry.net internet address = 206.51.26.250
mx06.bwc.na.blackberry.net internet address = 206.51.26.133

This is a Windows 2003 Server. Connection to the internet is working
fine. I don't experience any other troubles with DNS or our network
right now.

Any hints for me what i can try next to enable my users to send Emails
to Crackberry addicts signed up with T-Mobile?

Thanks in advance
Phil

[philipp...@gmail.com]

Sorry for posting so quick. Our PIX Firewall dropped the DNS packets.
Turning of EDNS0 worked. See http://support.microsoft.com/?id=828731
for more Details.

Phil

[Kevin D. Goodknecht Sr. [MVP]]

In news:1098206338.4...@z14g2000cwz.googlegroups.com,
philipp...@gmail.com <philipp...@gmail.com> commented
Then Kevin replied below:

> Sorry for posting so quick. Our PIX Firewall dropped the
> DNS packets. Turning of EDNS0 worked. See
> http://support.microsoft.com/?id=828731 for more Details.

You should have fixed the Pix, DNS is more efficient using EDNS.

--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
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[Jonathan de Boyne Pollard]

PS> a problem sending mails [...] type=mx [...] This is a Windows
PS> 2003 Server.

<URL:http://homepages.tesco.net./~J.deBoynePollard/FGA/dns-edns0-and-firewalls.html>