Search Again: Re: trace route with dns expert From: Mia''s Virtual Post Office Date: Tuesday, November 6, 2001 Time: 8:28:04 am Men & Mice Support said: >At 4:48 PM -0800 11/5/01, rashantha de silva wrote: >>hello >> >>we have been having problems sending mail to accounts at target.com >> >>i ran a trace route on target.com and it stops at 19 hops and it seems like >>the hops take a detour >> >>from alter.net to >>customer.alter.net and stops there. > >They're probably blocking ping packets at that point. I can connect >to their mail server(s) - it's unclear how many they have because: > >- they list two names in their MX records, but >- both names resolve to the same address, but >- when I connected to that IP address several times (trying the >different names), the servers identified themselves using different >names (neither of which match the names in the MX records). Let me guess, names like exthub01.tgt.com? > >It would appear that SMTP traffic actually goes through some sort of >load-balancing proxy or port-mapping server, and from there to at >least two different SMTP servers. This is starting to make a bit of sense now that I think about it. Since both mail servers listed have the same IP, and are obviously the same machine this is probably the load/prox server itself which is apparently jutting out to internal mail servers, of which, none of us know about. Just a wee bit of overkill for a Target. Interesting though. jer (jer@mia.net) Bella Mia, Inc. High Speed Wireless - www.dslone.com Web Hosting and Colocation - www.hostdrive.com Nation Wide Dialup 4 years and running - www.mia.net NetZero = What this company will "NET" --- "ZERO"

Messages In This Thread: trace route with dns expert by rashantha de silva on Nov 5, 2001 at 4:47:00 pm Re: trace route with dns expert by Men & Mice Support on Nov 6, 2001 at 3:07:56 am Re: trace route with dns expert by Mia''s Virtual Post Office on Nov 6, 2001 at 8:28:04 am