Re: Broadband Over the Mobile Network

From	Graham J <nobody@nowhere.co.uk>
Newsgroups	uk.telecom.broadband
Subject	Re: Broadband Over the Mobile Network
Date	2026-05-21 22:16 +0100
Organization	A noiseless patient Spider
Message-ID	<10unsof$11pli$1@dont-email.me> (permalink)
References	<xn0pq1c6qb4pzfi00l@news.individual.net> <10umqk1$n0er$1@dont-email.me> <6QvLe8GA@news.chiark.greenend.org.uk> <10un10t$ovvs$1@dont-email.me> <6QvGt8GA@news.chiark.greenend.org.uk>

Show all headers | View raw

Theo wrote:

[snip]
> 
>> An email hosting service that you pay for will check the IP of an SMTP
>> request against blacklists; and this is what usually catches those using
>> CGNAT.
> 
> Email hosting companies check the sending IP of emails delivered from the
> internet to their customers.  But emails uploaded to their server by their
> customers for sending to the internet come in a different route

- also via a firewall -

> - they are
> authenticated with customer login details, so they have no need to check
> against IP blacklists.  

But many do in fact check against IP blacklists.  I have seen Zen 
Internet do this.  If your credentials have been compromised then the 
email hosting company may be sending malicious mail purporting to 
originate from you; and they REALLY DO NOT want to be found doing that.

-- 
Graham J

Thread

Broadband Over the Mobile Network "Jeff Gaines" <jgnewsid@outlook.com> - 2026-05-21 09:15 +0000
  Re: Broadband Over the Mobile Network Theo <theom+news@chiark.greenend.org.uk> - 2026-05-21 10:41 +0100
    Re: Broadband Over the Mobile Network "Jeff Gaines" <jgnewsid@outlook.com> - 2026-05-21 10:05 +0000
      Re: Broadband Over the Mobile Network Tweed <usenet.tweed@gmail.com> - 2026-05-21 10:16 +0000
      Re: Broadband Over the Mobile Network Roger Mills <mills37.fslife@gmail.com> - 2026-05-21 15:07 +0100
    Re: Broadband Over the Mobile Network Mark Undrill <spam@invalid.invalid> - 2026-05-21 11:17 +0100
  Re: Broadband Over the Mobile Network Graham J <nobody@nowhere.co.uk> - 2026-05-21 12:34 +0100
    Re: Broadband Over the Mobile Network Theo <theom+news@chiark.greenend.org.uk> - 2026-05-21 14:11 +0100
      Re: Broadband Over the Mobile Network "Jeff Gaines" <jgnewsid@outlook.com> - 2026-05-21 13:19 +0000
        Re: Broadband Over the Mobile Network Theo <theom+news@chiark.greenend.org.uk> - 2026-05-21 15:06 +0100
          Re: Broadband Over the Mobile Network Graham J <nobody@nowhere.co.uk> - 2026-05-21 22:09 +0100
            Re: Broadband Over the Mobile Network Theo <theom+news@chiark.greenend.org.uk> - 2026-05-22 00:01 +0100
              Re: Broadband Over the Mobile Network Tweed <usenet.tweed@gmail.com> - 2026-05-22 05:43 +0000
              Re: Broadband Over the Mobile Network Graham J <nobody@nowhere.co.uk> - 2026-05-22 08:22 +0100
                Re: Broadband Over the Mobile Network Tweed <usenet.tweed@gmail.com> - 2026-05-22 07:36 +0000
                Re: Broadband Over the Mobile Network Graham J <nobody@nowhere.co.uk> - 2026-05-22 09:15 +0100
                Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-22 21:47 +0100
                Re: Broadband Over the Mobile Network Chris <ithinkiam@gmail.com> - 2026-05-23 10:09 +0000
                Re: Broadband Over the Mobile Network Tweed <usenet.tweed@gmail.com> - 2026-05-23 10:32 +0000
                Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-23 20:48 +0100
                Re: Broadband Over the Mobile Network Tweed <usenet.tweed@gmail.com> - 2026-05-24 06:11 +0000
                Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-24 11:27 +0100
                Re: Broadband Over the Mobile Network Tweed <usenet.tweed@gmail.com> - 2026-05-24 11:18 +0000
                Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-24 14:18 +0100
                Re: Broadband Over the Mobile Network David Rance <david@SPAMOFF.invalid> - 2026-05-24 18:37 +0100
                Re: Broadband Over the Mobile Network Chris <ithinkiam@gmail.com> - 2026-05-24 22:10 +0000
                Re: Broadband Over the Mobile Network Richmond <dnomhcir@gmx.com> - 2026-05-25 10:21 +0100
                Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-24 10:58 +0100
                Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-24 11:29 +0100
      Re: Broadband Over the Mobile Network Graham J <nobody@nowhere.co.uk> - 2026-05-21 14:23 +0100
        Re: Broadband Over the Mobile Network Theo <theom+news@chiark.greenend.org.uk> - 2026-05-21 15:15 +0100
          Re: Broadband Over the Mobile Network Graham J <nobody@nowhere.co.uk> - 2026-05-21 22:16 +0100
      Re: Broadband Over the Mobile Network Chris <ithinkiam@gmail.com> - 2026-05-21 14:12 +0000
      Sending email from own server (was: Broadband Over the Mobile Network) Geoff Clare <geoff@clare.See-My-Signature.invalid> - 2026-05-22 13:59 +0100
        Re: Sending email from own server Graham J <nobody@nowhere.co.uk> - 2026-05-22 14:20 +0100
          Re: Sending email from own server Tweed <usenet.tweed@gmail.com> - 2026-05-22 15:23 +0000
            Re: Sending email from own server Graham J <nobody@nowhere.co.uk> - 2026-05-22 20:03 +0100
    Re: Broadband Over the Mobile Network David Wade <g4ugm@dave.invalid> - 2026-05-21 19:01 +0100
  Re: Broadband Over the Mobile Network Chris <ithinkiam@gmail.com> - 2026-05-21 13:26 +0000
  Re: Broadband Over the Mobile Network Java Jive <java@evij.com.invalid> - 2026-05-21 15:18 +0100
  Re: Broadband Over the Mobile Network Jason H <jason_hindle@yahoo.com> - 2026-05-30 09:29 +0000
    Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-30 13:43 +0100
    Re: Broadband Over the Mobile Network Woody <harrogate3@ntlworld.com> - 2026-05-30 15:54 +0100
      Re: Broadband Over the Mobile Network Andy Burns <usenet@andyburns.uk> - 2026-05-30 16:01 +0100
        Re: Broadband Over the Mobile Network Woody <harrogate3@ntlworld.com> - 2026-05-30 20:12 +0100
      Re: Broadband Over the Mobile Network "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-05-30 17:22 +0100
      Re: Broadband Over the Mobile Network Richmond <dnomhcir@gmx.com> - 2026-05-30 17:25 +0100
        Re: Broadband Over the Mobile Network David Wade <g4ugm@dave.invalid> - 2026-05-30 17:51 +0100

csiph-web