linux-kernel - Re: [e-mail problems] with infradead.org recipients

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <45609CA9.8030806@garzik.org>
Date:	Sun, 19 Nov 2006 13:04:25 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Oleg Verych <olecom@...wer.upol.cz>
CC:	linux-kernel@...r.kernel.org, David Woodhouse <dwmw2@...radead.org>
Subject: Re: [e-mail problems] with infradead.org recipients

Oleg Verych wrote:
> Hi, guys. I have problems with you.
> 
> Is some special NS or route needed? I can add, no problem (ISP problems
> are very unlikely, but possible ;).
> 
> Final-Recipient: RFC822; arjan infradead.org
> Action: failed
> Status: 4.4.7
> Remote-MTA: DNS; canuck.infradead.org
> Last-Attempt-Date: Sun, 19 Nov 2006 14:27:52 +0100
> 
> Final-Recipient: RFC822; matthew wil.cx
> Action: delayed
> Status: 4.4.1
> Remote-MTA: DNS; canuck.infradead.org
> Last-Attempt-Date: Sun, 19 Nov 2006 12:49:26 +0100
> Will-Retry-Until: Fri, 24 Nov 2006 08:43:49 +0100


I bet this is greylisting on infradead.org.  Greylisting will put 
unknown IPs into a database, and /temporarily/ reject the mail, asking 
for the remote mail server to queue it.  Once $GREYLIST_TIME has passed, 
infradead.org will accept the email.  This successfully filters out a 
lot of spammers, and broken SMTP servers that have broken retransmit 
[rules].

You probably need to fix the mail server delivering the mails to 
properly retransmit...

	Jeff



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/