* Filter incoming mails by sender's address?
@ 2002-06-10 14:47 Takacs Istvan
2002-06-10 14:52 ` Antony Stone
2002-06-10 14:57 ` Ramin Alidousti
0 siblings, 2 replies; 3+ messages in thread
From: Takacs Istvan @ 2002-06-10 14:47 UTC (permalink / raw)
To: netfilter (Elektronikus levelek)
Hi,
Is there a way to filter incoming letters
by the sender's address, or is it
completely an MTA's function?
We have a server what has to receive
mails and process their content automaically.
We'd like to restrict the email addresses
to those who just enabled to send mails
to that address.
Can I do it somehow with netfilter?
Thanks in advance!
Regards;
Istvan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Filter incoming mails by sender's address?
2002-06-10 14:47 Filter incoming mails by sender's address? Takacs Istvan
@ 2002-06-10 14:52 ` Antony Stone
2002-06-10 14:57 ` Ramin Alidousti
1 sibling, 0 replies; 3+ messages in thread
From: Antony Stone @ 2002-06-10 14:52 UTC (permalink / raw)
To: netfilter (Elektronikus levelek)
On Monday 10 June 2002 3:47 pm, Takacs Istvan wrote:
> Hi,
>
> Is there a way to filter incoming letters
> by the sender's address, or is it
> completely an MTA's function?
Yes. That is the correct answer.
> We have a server what has to receive
> mails and process their content automaically.
> We'd like to restrict the email addresses
> to those who just enabled to send mails
> to that address.
>
> Can I do it somehow with netfilter?
No.
Antony.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Filter incoming mails by sender's address?
2002-06-10 14:47 Filter incoming mails by sender's address? Takacs Istvan
2002-06-10 14:52 ` Antony Stone
@ 2002-06-10 14:57 ` Ramin Alidousti
1 sibling, 0 replies; 3+ messages in thread
From: Ramin Alidousti @ 2002-06-10 14:57 UTC (permalink / raw)
To: Takacs Istvan; +Cc: netfilter (Elektronikus levelek)
On Mon, Jun 10, 2002 at 04:47:21PM +0200, Takacs Istvan wrote:
> Hi,
>
> Is there a way to filter incoming letters
> by the sender's address, or is it
> completely an MTA's function?
You're right here. It's completely an MTA's function.
Except for the fact that netfilter sees port 25 (which
the world knows it's the smtp port) there is no specific
knowledge about the contents of an smtp stream within netfilter.
You're better off doing this sort of filtering at the smtp layer.
Ramin
>
> We have a server what has to receive
> mails and process their content automaically.
> We'd like to restrict the email addresses
> to those who just enabled to send mails
> to that address.
>
> Can I do it somehow with netfilter?
>
> Thanks in advance!
>
> Regards;
>
> Istvan
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-06-10 14:47 Filter incoming mails by sender's address? Takacs Istvan
2002-06-10 14:52 ` Antony Stone
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