On 2021-03-03 16:03, Matus UHLAR - fantomas wrote:
On 2021-03-03 10:45, natan wrote:
This is server for incomming e-mail with many vdomain and vusers

On 03.03.21 11:38, Benny Pedersen wrote:
number of domains is irrelevant for backscatter

I check rbl in smtpd_recipient_restrictions
..
        reject_rbl_client b.barracudacentral.org,
        reject_rbl_client dynamic.rbl.tld,
        reject_rbl_client bl.spamcop.net,
        reject_rbl_client zen.spamhaus.org,
        reject_rbl_client cbl.abuseat.org,
        reject_rbl_client dnsbl.sorbs.net,
       reject_rbl_client ips.backscatterer.org,
        permit

move this to smtpd_client...

to make impossible whitelisting senders and/or recipients?

On 03.03.21 16:16, Benny Pedersen wrote:
why should recipients be whitelisted ?, to allow backscatter ?

mostly sender, but recipient possibly too

pushing reject_rbl_client to smtpd_client_restrictions make whitelisting
either impossible, which may be a huge problem.

OP also could add dbl testing in postfix, order of config lines is important

order of lines is not, order of directives within smtpd_recipient_restrictions
is important.

i just say postfix is first match "permit" in client restrictions disables rbl test in smtpd_recipient stage, hopefully i am not sleeping

it does not. You can reject RBL at any stage.

btw, postscreen does that job much better than smtpd_*_restrictions

maybe long standing postscreen seqfault i reported to maillist is solved now :/

I know of none and have noticed none. Maybe it's been solved for some time?

--
Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
- Have you got anything without Spam in it?
- Well, there's Spam egg sausage and Spam, that's not got much Spam in it.

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