4 March 2020, 02:50:05 "Rob Landley" <r...@landley.net>: > You're getting landley.net emails from_me_, but not dreamhost's own servers
No, according to the log, mailing list letters come from 64.90.62.195, which is dreamhost. With a header, it asks recipient's server to display the letter as though it comes from your domain. Following RFC 7208, recipient looks up your domain records and checks if you allow the server from that network prefix to send letters as you. Your domain has no matching record, so a recipient's host complying to the standard "SHOULD use an SMTP reply code of 550" to reject it as "not authorized to use the domain in the given identity". The RFC about SPF was released 6 years ago, mail providers allowed a grace term waiting for people to add the records, which seems over. Comparing at dnschecker.org/all-dns-records-of-domain.php the lists.landley.net to musl's lists.openwall.com, I guess something like this is enough: TXT lists.landley.net v=spf1 ip4:64.90.62.0/19 ?all 3599 But please ask dreamhost support for which precise records you should add. I can't blindly suggest correct records without access to your account, and I think an MX record is also needed (lists.landley.net isn't the same as landley.net). _______________________________________________ Toybox mailing list Toybox@lists.landley.net http://lists.landley.net/listinfo.cgi/toybox-landley.net