*For* non-existent or *From *non-existent?
I never knew that Postfix had a reject_unknown_sender. Does it have any
caveats that I should watch over?
Thanks,
C.R.
On 12/22/2010 7:53 PM, John Peach wrote:
On Wed, 22 Dec 2010 19:52:03 +0200
Razvan Chitu<[email protected]> wrote:
Hello again,
This time the question is simple: my server is being maliciously
used to send spam, and this has to stop. Here are the log entries in
question (latest ones):
[snip]
Also, I'm having a lot of these kind of entries lately (*Dec 22
19:03:18 raptor postfix/qmgr[23830]: 42B741BC5C9: from=<>, size=3425,
nrcpt=1 (queue active)*) with unknown sender. Unfortunately these
bounces are what put my server on several backscatter lists. Is there
any way to reject these kind of senders "<>" from start
(reject_unknown_sender?). Is there any way to insert longer and
longer delays for unauthorized connections such as the ones from
88.166.185.164 with each connection attempt? Something like proftpd's
throttle module.
Thank you and be kind. Point me to the right manual :))
Stop accepting mail for non-existent users.
Kind regards,
--
Razvan Chitu
Network Engineer
SC Top Edge Engineering SRL
Addr: Str. Calea Bucuresti, Bl. M18b, Craiova, 200529, Romania
Tel: 0251-413193 (int. 19)
Fax: 0251-413977
Mobile: 0722-636488
