On 14/05/2018 12:25, Jasen Betts via Exim-users wrote: > On 2018-05-14, Mark Elkins via Exim-users <exim-users@exim.org> wrote: >> I need help. (pun included) >> >> Someone is using "ple...@help.co.za" as the source of spam e-mail. The >> address does not exist... > step 0: publish an SPF record. except there is no guarantee that I am the only method of sending e-mail's out for this domain. I do run mail submission relay services for those that ask. Many customers still use their Internet service provider though to send out email - which is far easier to set up for themselves (a single SMTP machine name) vs Submission - which is a bunch of configuration items. I do tell people that Mail submission to my relay is better/safer/more secure/mobile (587+authentication+ssl+StartTLS) but people are funny creatures - if it works - don't change it.
> >> delivering 1fI8dS-0008Pd-DC (queue run pid 700) >> LOG: MAIN >> ** ple...@help.co.za: Unknown user > why are you letting this email onto the queue? I'm not sure that I am explicitly doing that. > >> ...but I do manage the domain "help.co.za" >> or - somehow tell exim when it gets an unknown user to /dev/null it ??? > can you instead tell exim which are valid users? The problem only arises for domains that I host. Need to sit down next to Lena (or a similar person) and have them check my configuration. (Is Lena at RIPE? - got friends there) -- Mark James ELKINS - Posix Systems - (South) Africa m...@posix.co.za Tel: +27.128070590 Cell: +27.826010496 For fast, reliable, low cost Internet in ZA: https://ftth.posix.co.za -- ## 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/
