CNAME Lookup failure for MX microsoft.com

Hi,

since a while Qmail gave be an error, trying to send email to microsoft.com 
(CNAME lookup failure) and bouncing the mail.

After some investigations yesterday, I got some interesting insights 
regarding microsoft.com:

dnsmx microsoft.com
10 mail.global.frontbridge.com
dnsname mail.global.frontbridge.com
dnsname: fatal: unable to parse IP address mail.global.frontbridge.com


And looking at the dnscache log:


@40000000498755a826eba174 tx 0 MX microsoft.com. microsoft.com. 
207.68.160.190 207.46.66.126 65.55.238.126 213.199.161.77 65.54.240.126
@40000000498755a8326c1e84 rr 207.68.160.190 003600 MX  microsoft.com. 10 
mail.global.frontbridge.com.

A little later:

dnsname 207.68.160.190
ns1.msft.net


dnsq mx microsoft.com 207.46.66.126
15 microsoft.com:
71 bytes, 1+1+0+0 records, response, authoritative, noerror
query: 15 microsoft.com
answer: microsoft.com 3600 MX 10 mail.global.frontbridge.com

And again later:

dnsip mail.global.frontbridge.com
216.32.181.22

@400000004987577e1586d764 tx 0 A mail.global.frontbridge.com. com. 
192.42.93.30 192.41.162.30 192.55.83.30 192.26.92.30 192.31.80.30 
192.43.172.30 192.5.6.30 192.12.94.30 192.54.112.30 192.52.178.30 
192.48.79.30 192.35.51.30 192.33.14.30
@400000004987577e1fe70f94 rr 192.42.93.30 172800 A ns18-f.bigfish.com. 
207.46.51.85
@400000004987577e1fe81934 rr 192.42.93.30 172800 A ns19-f.bigfish.com. 
213.199.154.21
@400000004987577e1fe8d4b4 rr 192.42.93.30 172800 A ns20-f.bigfish.com. 
216.32.180.21
@400000004987577e1fe99bec rr 192.42.93.30 172800 A ns21-f.bigfish.com. 
216.32.181.21
@400000004987577e1feb0b1c rr 192.42.93.30 172800 NS  frontbridge.com. 
ns18-f.bigfish.com.
@400000004987577e1feb9f8c rr 192.42.93.30 172800 NS  frontbridge.com. 
ns19-f.bigfish.com.
@400000004987577e1fec2c2c rr 192.42.93.30 172800 NS  frontbridge.com. 
ns20-f.bigfish.com.
@400000004987577e1fecbcb4 rr 192.42.93.30 172800 NS  frontbridge.com. 
ns21-f.bigfish.com.
@400000004987577e1fed4d3c stats 71 25958 1 0
@400000004987577e1fee2fcc cached A ns18-f.bigfish.com.
@400000004987577e1feecc0c cached A ns19-f.bigfish.com.
@400000004987577e1fef607c cached A ns20-f.bigfish.com.
@400000004987577e1feff4ec cached A ns21-f.bigfish.com.
@400000004987577e1ff0c00c tx 0 A mail.global.frontbridge.com. 
frontbridge.com. 216.32.181.21 216.32.180.21 213.199.154.21 207.46.51.85
@400000004987577e2bbd132c rr 216.32.181.21 000010 A 
mail.global.frontbridge.com. 216.32.181.22
@400000004987577e2bbe18e4 stats 71 26013 1 0
@400000004987577e2bbf5164 sent 71


Obviously, I took dnscache too long to fetch the address.

Q: Has anyone seen the same problem or perhaps can suggest a solution ?

regards.
--eh.

Dr. Erwin Hoffmann | FEHCom | http://www.fehcom.de/