nanog mailing list archives
Re: The End-To-End Internet (was Re: Blocking MX query)
From: "John Levine" <johnl () iecc com>
Date: 5 Sep 2012 23:07:07 -0000
Well, if you've got proper forward and reverse DNS, and your portable SMTP server identifies itself properly, and you are using networks that don't filter outbound port 25, AND you have DKIM configured correctly and aren't using it for a situation for which it is inappropriate, then you'll get the same results with a portable SMTP server that you would sending through a properly configured static server.
Not really. Large mail system like Gmail and Yahoo have a pretty good map of the IPv4 address space. If you're sending from a residential DSL or cable modem range, they'll likely reject any mail you send directly no matter what you do. R's, John
Current thread:
- Re: The End-To-End Internet (was Re: Blocking MX query), (continued)
- Re: The End-To-End Internet (was Re: Blocking MX query) Måns Nilsson (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Sean Harlow (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Michael Thomas (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Michael Thomas (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Henry Stryker (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) John Levine (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Michael Thomas (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Daniel Taylor (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Michael Thomas (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Daniel Taylor (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) John Levine (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) valdis . kletnieks (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Sean Harlow (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) Jimmy Hess (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) John Levine (Sep 06)
- Re: The End-To-End Internet (was Re: Blocking MX query) Sean Harlow (Sep 04)
- Re: The End-To-End Internet (was Re: Blocking MX query) William Herrin (Sep 04)
- Re: The End-To-End Internet (was Re: Blocking MX query) Jay Ashworth (Sep 04)
- Re: The End-To-End Internet (was Re: Blocking MX query) Izaac (Sep 05)
- Re: The End-To-End Internet (was Re: Blocking MX query) TJ (Sep 07)