On Wed, 3 Apr 2019 at 11:27, Rory Campbell-Lange <[email protected]> wrote:
> On 02/04/19, Odhiambo Washington via Exim-users ([email protected]) > wrote: > > On Mon, 1 Apr 2019 at 22:12, Rory Campbell-Lange via Exim-users < > > [email protected]> wrote: > > > > > It's some years since I've spent time tweaking my exim setup to receive > > > spam. I've forgotten any skills I might once have had in this area. > > > Hello Rory, > > > > Long time! > > > > Lately, you can also substitute rspamd for SpamAssassin. > > I hope you are also doing rDNS checks. They help me block many spammers > too. > > Hi Odhiambo. Lovely to receive an email from you after all these years! > > I've spent some time looking at the rspamd website following your > mention of it. I'll turn to that if I can't improve my spamassassin > performance! > > For RDNS do you recommend something along the lines of > > drop message = REJECTED - Sender Verify Failed and no RDNS > log_message = REJECTED - Sender Verify Failed and > no RDNS > !verify = reverse_host_lookup > !verify = sender/callout=2m,defer_ok > !condition = ${if eq{$sender_verify_failure}{}} > > (reference https://github.com/Exim/exim/wiki/Verification) > > Kind regards > Rory > Hi Rory, Yes, you can do that, but I would actually split the test into two for clarity in logging. deny message = REJECTED - rDNS Verify Failed log_message = rDNS fail for $sender_host_address # check only port 25, not users submitting on port 587 condition = ${if eq{$interface_port}{25}} !verify = reverse_host_lookup I would do the sender verification check separately: deny message = REJECTED - Sender Verify Failed log_message = REJECTED - Sender Verify Failed for $sender_address !verify = sender/callout=2m,defer_ok, !condition = ${if eq{$sender_verify_failure}{}} YMMV. -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", grep ^[^#] :-) -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
