Re: random usernames in attempts to break in to my machine?

To: debian-user@lists.debian.org
Subject: Re: random usernames in attempts to break in to my machine?
From: John Hasler <john@sugarbit.com>
Date: Tue, 05 Apr 2022 08:09:10 -0500
Message-id: <[🔎] 871qybr821.fsf@sugarbit.com>
Reply-to: john@sugarbit.com (John Hasler)
In-reply-to: <[🔎] YkvZou2ONElhzk9Y@tuxteam.de> (tomas@tuxteam.de's message of "Tue, 5 Apr 2022 07:54:42 +0200")
References: <[🔎] 1bsfqtynj4.fsf@pfeifferfamily.net> <[🔎] 20220404204728.171da8dc@jrenewsid.jretrading.com> <[🔎] 87ilror26a.fsf@sugarbit.com> <[🔎] YkvZou2ONElhzk9Y@tuxteam.de>

tomas writes:
> The only credible action left is to decide while the SMTP transaction
> is in process, and to terminate it early. Then, the upstream MTA will
> notice that something went wrong.

> Most MTAs these days support this option.

Too late. Note the part about POP3. The upstream MTA is Pobox or
Gandi. They have already completed the SMTP transaction with the sender.
Any anti-spam efforts involving SMTP termination are in their hands.
-- 
John Hasler 
john@sugarbit.com
Elmwood, WI USA

Reply to:

Follow-Ups:
- Re: random usernames in attempts to break in to my machine?
  - From: <tomas@tuxteam.de>

References:
- random usernames in attempts to break in to my machine?
  - From: Joe Pfeiffer <pfeiffer@cs.nmsu.edu>
- Re: random usernames in attempts to break in to my machine?
  - From: Joe <joe@jretrading.com>
- Re: random usernames in attempts to break in to my machine?
  - From: John Hasler <john@sugarbit.com>
- Re: random usernames in attempts to break in to my machine?
  - From: <tomas@tuxteam.de>

Prev by Date: Re: random usernames in attempts to break in to my machine?
Next by Date: Re: random usernames in attempts to break in to my machine?
Previous by thread: Re: random usernames in attempts to break in to my machine?
Next by thread: Re: random usernames in attempts to break in to my machine?
Index(es):
- Date
- Thread