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From: Dmitry Ivanov <dimss@solutions.lv>
To: Luca Ferrari <fluca1978@virgilio.it>
Cc: linux-admin@vger.kernel.org
Subject: Re: sendmail question
Date: Wed, 26 May 2004 19:08:17 +0300	[thread overview]
Message-ID: <20040526160817.GA7181@new.solutions.lv> (raw)
In-Reply-To: <200405261748.16197.fluca1978@virgilio.it>

On Wed, May 26, 2004 at 05:48:16PM +0200, Luca Ferrari wrote:
> Hi,
> I use sendmail to send automatic emails from servers to my mailbox, to get 
> information about disk status, etc. Now it seems as several mail providers 
> are stopping incoming mails from machines not registered as mail machines. Is 
> there a way to avoid this? I understand that this way of blocking is to 
> prevent spammers, but it is quite bothering if you want to use sendmail for 
> "fair" uses.

Many mail servers require sender to be registered in "reverse DNS".
Look:

web@dimss:~$ host gw
gw.solutions.lv has address 159.148.92.164
web@dimss:~$ host 159.148.92.164
164.92.148.159.in-addr.arpa is an alias for 164.nite.lv.92.148.159.in-addr.arpa.
164.nite.lv.92.148.159.in-addr.arpa domain name pointer gw.solutions.lv.
web@dimss:~$

Here 159.148.92.164 is mapped to gw.solutions.lv in "reverse zone".
Ask your provider to add record like this for your IP-address.

-- 
I am a viral sig. Please copy me and help me spread. Thank you.

  parent reply	other threads:[~2004-05-26 16:08 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-26 15:48 sendmail question Luca Ferrari
2004-05-26 16:04 ` Richard Nairn
2004-05-26 16:08 ` Dmitry Ivanov [this message]
2004-05-26 16:10 ` Jeffrey Morse

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