nanog mailing list archives
Re: Computer systems blamed for feeble hurricane response?
From: Mike Tancsa <mike () sentex net>
Date: Wed, 14 Sep 2005 09:10:00 -0400
At 07:28 AM 14/09/2005, Suresh Ramasubramanian wrote:
On 9/14/05, Mike Tancsa <mike () sentex net> wrote: > >Port 587? > Not everyone implements that. You would make a large part of the > internet unreachable via email > vinyl# telnet mx2.mail.yahoo.com 587 > Trying 67.28.114.36... > telnet: connect to address 67.28.114.36: Connection refused > Trying 4.79.181.13... Wrong host. 587 / msa is for outbound email
Sorry, my point was that you could not just assume the sending host was a mail server by connecting back to the host on the submission port as it might not be listening on that port or that because the host sending is not in the MX list, that its not a mail server.
---Mike
Current thread:
- Re: Computer systems blamed for feeble hurricane response?, (continued)
- Re: Computer systems blamed for feeble hurricane response? Joseph S D Yao (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Joseph S D Yao (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Joseph S D Yao (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Steven M. Bellovin (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Joseph S D Yao (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Eric A. Hall (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? William Allen Simpson (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Valdis . Kletnieks (Sep 13)
- Message not available
- Re: Computer systems blamed for feeble hurricane response? Mike Tancsa (Sep 13)
- Re: Computer systems blamed for feeble hurricane response? Suresh Ramasubramanian (Sep 14)
- Re: Computer systems blamed for feeble hurricane response? Mike Tancsa (Sep 14)
- mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) william(at)elan.net (Sep 13)
- mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Roy Badami (Sep 13)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) william(at)elan.net (Sep 13)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Adam McKenna (Sep 13)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Crist Clark (Sep 13)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Steven M. Bellovin (Sep 13)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Dave Crocker (Sep 13)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Joseph S D Yao (Sep 14)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Robert E . Seastrom (Sep 14)
- Re: mail service with no mx (was - Re: Computer systems blamed for feeble hurricane response?) Joseph S D Yao (Sep 15)