Becuase Yahoo apparently does not validate addresses at SMTP time. Exim
has to way to know that the address is not valid:
# telnet mx2.mail.yahoo.com 25
Trying 64.157.4.82...
Connected to mta-v12.level3.mail.yahoo.com (64.157.4.82).
Escape character is '^]'.
220 YSmtp mta621.mail.yahoo.com ESMTP service ready
helo test
250 mta621.mail.yahoo.com
mail from:<>
250 null sender <> ok
rcpt to:<rxgibfakesbfyegl@???>
250 recipient <rxgibfakesbfyegl@???> ok
quit
221 mta621.mail.yahoo.com
Connection closed by foreign host
On Mon, 18 Feb 2002, Larry wrote:
>
>
> I have the following setup in my configuration file,
>
>
> receiver_verify = true
> sender_verify = true
> headers_sender_verify = true
> headers_checks_fail = true
> headers_check_syntax = true
> sender_verify_fixup = true
> sender_verify_reject = true
> sender_verify_hosts = *
> sender_verify_hosts_callback = *
> sender_verify_callback_domains = *
>
>
> Why is Exim still accepting mail from addresses like the following
> which do not exist?
>
>
> From: rxgibfakesbfyegl@???
> To: psaejgbuxsfalxja@???
> Subject: No Fee! Accept Credit Cards Today!
> Date: Sun, 17 Feb 2002 22:58:47 -0800
>
>
> Thanks
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim details at http://www.exim.org/ ##
>
>
--
