Ralf Hildebrandt wrote:
* Mark Goodge :
I agree. Sender verification has its uses, but it is *not* suitable
for use as an anti-spam tool on inbound email. At least one major
webmail provider is known to blacklist hosts that employ it
excessively.
So use it selectively only.
or use a third p
* Mark Goodge :
> I agree. Sender verification has its uses, but it is *not* suitable
> for use as an anti-spam tool on inbound email. At least one major
> webmail provider is known to blacklist hosts that employ it
> excessively.
So use it selectively only.
--
Ralf Hildebrandt
Geschäftsbereic
Charles Marcus wrote:
On 10/21/2009, Chris Imrie (chris.im...@abeta.co.uk) wrote:
It checks to verify the sender once, then caches the result in a
database, so mail servers aren't hassled more than once per email
address verification.
Maybe I'm wrong, but I think this could still get you black
On 10/21/2009, Chris Imrie (chris.im...@abeta.co.uk) wrote:
> It checks to verify the sender once, then caches the result in a
> database, so mail servers aren't hassled more than once per email
> address verification.
Maybe I'm wrong, but I think this could still get you blacklisted...
http://ww
]
On Behalf Of Charles Marcus
Sent: 21 October 2009 04:43 PM
To: Chris Imrie
Cc: postfix-users@postfix.org
Subject: Re: Postfix Sender Verify
This message was received from outside of the company.
On 10/21/2009, Chris Imrie (chris.im...@abeta.co.uk) wrote:
> Has worked correctly, and we're
On 10/21/2009, Chris Imrie (chris.im...@abeta.co.uk) wrote:
> Has worked correctly, and we're now verifying emails as they come in.
Hopefully you aren't doing this for all mail?
If so, you will very likely end up being on different blacklists for
abusing other people's servers, especially if yuou
fying emails as they come in.
Kind Regards
Chris
-Original Message-
From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org]
On Behalf Of Ralf Hildebrandt
Sent: 21 October 2009 12:23 PM
To: postfix-users@postfix.org
Subject: Re: Postfix Sender Verify
This messag
* Chris Imrie :
> Hi Ralf
>
> Here's the output from 'postconf -n', we have the Sender Verify disabled
> currently while we get the address_verify_sender configured.
>
> address_verify_map = btree:/etc/postfix/verified_senders
> address_verify_negative_cache = no
> alias_database = hash:/etc/ali
ober 2009 12:04 PM
To: postfix-users@postfix.org
Subject: Re: Postfix Sender Verify
This message was received from outside of the company.
* Postflick :
>
> Hi Ralf
>
> Where would these parameters be configured.
It'Äs hard to tell, it depends on other settings!
> I
* Postflick :
>
> Hi Ralf
>
> Where would these parameters be configured.
It'Äs hard to tell, it depends on other settings!
> I have not told it to use postmaster, however, using postconf, it does
> return that as the address;
>
> u...@spam {uk} [11:56:26] /etc/postfix: postconf -d address_ve
ithin 'main.cf' relating to these settings.
Thanks for your help.
Chris
Ralf Hildebrandt wrote:
>
> * Postflick :
>>
>> Hi
>>
>> We're recently enabled Postfix Sender Verify on our mail filtering
>> gateway.
>>
>> This has worked qu
* Postflick :
>
> Hi
>
> We're recently enabled Postfix Sender Verify on our mail filtering gateway.
>
> This has worked quite well, however Postfix keeps calling back to
> mailservers using a non-fully qualified address, e.g. from=.
Because you configured it that
Hi
We're recently enabled Postfix Sender Verify on our mail filtering gateway.
This has worked quite well, however Postfix keeps calling back to
mailservers using a non-fully qualified address, e.g. from=.
This then sets off spam checks on that mailserver it's calling back to,
r
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