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Groups > alt.comp.software.thunderbird > #21766

Re: Providers that allow a 3rd party address in outgoing mail

From Marco Moock <mm@dorfdsl.de>
Newsgroups alt.comp.software.thunderbird
Subject Re: Providers that allow a 3rd party address in outgoing mail
Date 2026-08-14 06:59 +0200
Organization A noiseless patient Spider
Message-ID <115m7be$286se$1@dont-email.me> (permalink)
References <11557vb$pst4$1@dont-email.me> <115f4t4$9dl$1@dont-email.me> <115fb19$2fid$1@dont-email.me> <115hr8s$r2qc$1@dont-email.me> <115l9bu$1uulb$1@dont-email.me>

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Am 13.08.26 um 22:27 schrieb Adam H. Kerman:
> Tell me exactly why authentication could not have taken place with
> Jo-Anne using the Sender header to indicate her association with the
> SMTP server she has been using.

Alignment. She can use Sender: but that doesn't give any proof she is 
allowed to use the foreign domain. Anyone can do that and this is the 
reason for the alignment requirement of certain receiving sites.

> Authentication, while not a spam countermeasure, while it does not
> prevent phishing, can provide traceability. In fighting the bad actors,
> that's what is needed. What isn't doing good is preventing Jo-Anne's
> legitimate messages from being delivered.

The receivers decide not to accept them. You can ask Google or MS to 
change that, but they most likely won't.

-- 
Gruß
Marco

Please send unsolicited mail to dustbin12@stinkedores.dorfdsl.de

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Thread

Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-07 13:25 -0500
  Re: Providers that allow a 3rd party address in outgoing mail "David E. Ross" <nobody@nowhere.invalid> - 2026-08-07 11:37 -0700
    Re: Providers that allow a 3rd party address in outgoing mail MikeS <MikeS@fred.com> - 2026-08-07 21:10 +0100
      Re: Providers that allow a 3rd party address in outgoing mail "David E. Ross" <nobody@nowhere.invalid> - 2026-08-07 13:26 -0700
      Re: Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-07 16:14 -0500
        Re: Providers that allow a 3rd party address in outgoing mail Thomas Barghahn <Th.Barghahn@t-online.de> - 2026-08-08 00:49 +0200
          Re: Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-07 18:55 -0500
            Re: Providers that allow a 3rd party address in outgoing mail Thomas Barghahn <Th.Barghahn@t-online.de> - 2026-08-08 02:53 +0200
              Re: Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-08 12:26 -0500
    Re: Providers that allow a 3rd party address in outgoing mail Gmail User <gmail@invalid.invalid> - 2026-08-07 21:48 +0100
      Re: Providers that allow a 3rd party address in outgoing mail "Adam H. Kerman" <ahk@chinet.com> - 2026-08-08 16:07 +0000
  Re: Providers that allow a 3rd party address in outgoing mail Gmail User <gmail@invalid.invalid> - 2026-08-07 22:14 +0100
    Re: Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-07 16:38 -0500
  Re: Providers that allow a 3rd party address in outgoing mail Stan Brown <someone@example.com> - 2026-08-07 17:07 -0700
    Re: Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-08 12:34 -0500
      Re: Providers that allow a 3rd party address in outgoing mail MikeS <MikeS@fred.com> - 2026-08-08 21:11 +0100
        Re: Providers that allow a 3rd party address in outgoing mail "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-08-09 13:08 +0100
          Re: Providers that allow a 3rd party address in outgoing mail Andy Burns <usenet@andyburns.uk> - 2026-08-09 13:35 +0100
            Re: Providers that allow a 3rd party address in outgoing mail "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-08-09 15:34 +0100
              Re: Providers that allow a 3rd party address in outgoing mail Andy Burns <usenet@andyburns.uk> - 2026-08-09 15:45 +0100
  Re: Providers that allow a 3rd party address in outgoing mail "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-08-08 19:59 +0100
    Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-08 13:23 -0700
      Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-10 08:15 -0700
        Re: Providers that allow a 3rd party address in outgoing mail Andy Burns <usenet@andyburns.uk> - 2026-08-10 17:24 +0100
    Re: Providers that allow a 3rd party address in outgoing mail Jo-Anne <Jo-Anne@nowhere.com> - 2026-08-08 17:02 -0500
      Re: Providers that allow a 3rd party address in outgoing mail dillinger <dillinger@not.invalid> - 2026-08-09 12:25 +0200
      Re: Providers that allow a 3rd party address in outgoing mail Dnews <dnews@triffid.co.uk> - 2026-08-09 12:14 +0100
        Re: Providers that allow a 3rd party address in outgoing mail "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-08-09 13:33 +0100
  Re: Providers that allow a 3rd party address in outgoing mail Marco Moock <mm@dorfdsl.de> - 2026-08-10 08:34 +0200
    Re: Providers that allow a 3rd party address in outgoing mail Andy Burns <usenet@andyburns.uk> - 2026-08-10 07:54 +0100
      Re: Providers that allow a 3rd party address in outgoing mail MikeS <MikeS@fred.com> - 2026-08-10 09:28 +0100
        Re: Providers that allow a 3rd party address in outgoing mail Andy Burns <usenet@andyburns.uk> - 2026-08-10 09:38 +0100
          Re: Providers that allow a 3rd party address in outgoing mail Marco Moock <mm@dorfdsl.de> - 2026-08-11 14:34 +0200
            Re: Providers that allow a 3rd party address in outgoing mail Andy Burns <usenet@andyburns.uk> - 2026-08-11 14:51 +0100
              Re: Providers that allow a 3rd party address in outgoing mail Marco Moock <mm@dorfdsl.de> - 2026-08-12 15:05 +0200
            Re: Providers that allow a 3rd party address in outgoing mail "Adam H. Kerman" <ahk@chinet.com> - 2026-08-11 14:19 +0000
              Re: Providers that allow a 3rd party address in outgoing mail MikeS <MikeS@fred.com> - 2026-08-12 13:55 +0100
                Re: Providers that allow a 3rd party address in outgoing mail "Adam H. Kerman" <ahk@chinet.com> - 2026-08-12 15:59 +0000
              Re: Providers that allow a 3rd party address in outgoing mail Marco Moock <mm@dorfdsl.de> - 2026-08-12 15:08 +0200
                Re: Providers that allow a 3rd party address in outgoing mail "Adam H. Kerman" <ahk@chinet.com> - 2026-08-13 20:27 +0000
                Re: Providers that allow a 3rd party address in outgoing mail Marco Moock <mm@dorfdsl.de> - 2026-08-14 06:59 +0200
                Re: Providers that allow a 3rd party address in outgoing mail "Adam H. Kerman" <ahk@chinet.com> - 2026-08-14 13:45 +0000
                Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-14 15:04 -0700
                Re: Providers that allow a 3rd party address in outgoing mail dillinger <dillinger@not.invalid> - 2026-08-15 00:32 +0200
                Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-14 15:40 -0700
                Re: Providers that allow a 3rd party address in outgoing mail "Adam H. Kerman" <ahk@chinet.com> - 2026-08-15 00:38 +0000
                Re: Providers that allow a 3rd party address in outgoing mail Gmail User <gmail@invalid.invalid> - 2026-08-15 00:07 +0100
                Re: Providers that allow a 3rd party address in outgoing mail Gordon <Gordon@leaf.net.nz> - 2026-08-15 09:06 +0000
                Re: Providers that allow a 3rd party address in outgoing mail Gmail User <gmail@invalid.invalid> - 2026-08-14 23:35 +0100
                Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-14 16:32 -0700
                Re: Providers that allow a 3rd party address in outgoing mail Nobody <jock@soccer.com> - 2026-08-14 17:14 -0700
                Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-14 17:31 -0700
                Re: Providers that allow a 3rd party address in outgoing mail Nobody <jock@soccer.com> - 2026-08-14 17:38 -0700
                Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-14 17:47 -0700
                Re: Providers that allow a 3rd party address in outgoing mail Nobody <jock@soccer.com> - 2026-08-14 18:30 -0700
                Re: Providers that allow a 3rd party address in outgoing mail Mike Easter <MikeE@ster.invalid> - 2026-08-14 19:39 -0700
        Re: Providers that allow a 3rd party address in outgoing mail Gmail User <gmail@invalid.invalid> - 2026-08-10 20:53 +0100

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