Re: [Exim] Sender Verify

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Autor: Raymond Dijkxhoorn
Data:  
A: Andreas Metzler
CC: exim-users
Assumpte: Re: [Exim] Sender Verify
Hi!

> yahoo.com is special. They accept all addresses except the ones that
> are abused at a slightly bigger scale. - If considerable amount of spam
> is sent with a yahoo-sender address and yahoo gets too many bounces
> this address is rejected at RCPT TO.
>
> 2004-06-27 13:43:04 H=xxx.xxx.com [123.45.76.89] sender verify
>   fail for <thesexxwarehouse@???>: response to "RCPT
>   TO:<thesexxwarehouse@???>" from mx2.mail.yahoo.com
>   [67.28.113.11] was: 553 VS10-RT Possible forgery or deactivated due
>   to abuse (#5.1.1)
>                 cu andreas


The bad thing is they dont send a permanent refusal, only a temp one, so a
zillion mailservers out there keep trying to deliver them the same mails
over and over. Only making it worse...

Jul 1 05:38:44 vmx55 exim[13675]: 2004-07-01 05:38:44 1BfpuE-0003Ef-6K
SMTP error from remote mailer after MAIL FROM:<grabovsky@???>
SIZE=82921: host mx3.mail.yahoo.com [64.156.215.5]: 421 VS5-MF Excessive
unknown recipients - possible Open Relay
http://help.yahoo.com/help/us/mail/spam/spam-18.html (#4.4.5)

Bye,
Raymond.